Average Baby Weight Gain Per Week During Pregnancy

Week 01 to Week 04

Calendar week one

This calendar week, you lot would have your last menstrual periods before you conceive. That means, your expected commitment engagement is calculated as 40 weeks from the starting time 24-hour interval of concluding menstrual period and this week is considered as office of your pregnancy period. Your oestrogen hormone levels increase and a special kind of mucous similar substance lines your uterus and the fallopian tubes to facilitate transit of sperms into the tubes. This mucous also protects and keeps the sperms alive for about 3-v days. While yous plan to excogitate, gear up yourself well. Avoid alcohol, drugs, tobacco or any other substances that are harmful to your baby. Eat a healthy diet rich in vitamins, particularly folic acid.

Week 2

Y'all would take released an ovum (egg) around this fourth dimension and if feasible sperms remain in the fallopian tube, fertilisation of the egg by the sperm may take place close to end of this week. You would have conceived and a new life starts growing inside you!

Week iii

During these seven days after formulation, the fertilised egg undergoes a series of cell division offset from breakdown into two cells, then iv followed by eight cells and and then goes on dividing as it travels from the fallopian tube into your uterus (womb). Once in the womb, this group of cells appears like a small-scale brawl (morula). This ball of cells becomes fluid-filled (blastocyst) and towards the finish of this week, blastocyst gets embedded into the lining of your womb. This is chosen implantation process and takes about six days to exist completed. Once implanted, the developing embryo can access your blood supply and receive diet. Your baby starts producing a hormone called human being chorionic gonadotropin (HCG), which prevents your menstrual periods and turns your pregnancy test positive.

Week 4

Your baby which is a ball of cells merely about the size of an apple tree seed is now called an embryo. It is made of 2 cell layers chosen epiblast and hypoblast which grade futurity organs and tissues of the baby. Amnion and the yolk sac are two other structures that develop this week. The amnion with its amniotic fluid envelops and protects the growing embryo. Yolk sac makes the claret that nourishes the embryo until placenta forms and takes over the function.

Calendar week 05 to Week 07

Week 5

Your baby that looked like a mass of cells until now, gains a distinct shape this week. The embryo is about half a centimetre long and appears as a tadpole. The neural tube develops which will later become your baby's spinal cord and brain. Your babe's heart and other vital organs such as kidneys and liver start developing. The placenta likewise forms this time and your baby gets nourishment from your blood through the placenta.

Week half dozen

Your baby has grown to about the size of a lentil past now. The brain and spinal cord are developing at a faster rate. Your baby has its facial features developing with those dark spots that transform into eyes and the pits on either side of the head make upwards the ear. Baby's heart starts beating around this week and heart rate can even be detected on an ultrasound during your prenatal visit. Minor buds protrude out that eventually form your baby's hands and anxiety. The digestive and respiratory organisation organs kickoff forming this week.

Week 7

Now onwards your infant well-nigh the size of a grape enters a very active developmental stage and at the aforementioned time starts adapting to the life inside your womb. The umbilical cord which acts as a linkage between you and your baby throughout pregnancy has formed by at present. This serves equally a portal to provide oxygen and nutrition to your baby and also for waste product disposal from baby'due south body.

Your baby is growing at a rapid pace and all the body parts that have started forming in the earlier weeks (center and brain) differentiate and become complex. Your baby'due south digestive tract and lungs also proceed to develop. At the end of the arm bud that had formed last week, a pocket-sized hand which looks like a paddle appears. By this week, baby'south face acquires a singled-out shape equally facial features such equally mouth, nostrils, ears and optics become more than defined.

Calendar week 08 to Week 12

Week eight

Your baby measures virtually one and a half centimetre by this week. Lot of change takes place this week. The cute little fingers and toes which you long to cuddle with begin to class. Your babe can now bend its hand at the elbow and wrist. The eyes become more evident equally they form pigment and also eyelids form to protect the eyes. The buds that develop into your baby's genital organs also appear this week.

Week 9

Your babe at present appears like a peapod and weighs around 2-3grams. By the stop of this calendar week, your baby will measure out up to ii.iii centimetres in length. The tail like extension at the finish of spinal cord disappears and baby's head grows very big compared to the residue of the body. The hands take grown longer and fingers go clearly distinguishable. Baby's genitals start to develop from the buds that had appeared in the previous week. Also, internal reproductive organs such as testes and ovaries begin forming this calendar week. Your baby may brand few of its showtime movements in this week which can be well appreciated on an ultrasound.

Week ten

By the end of this week, your baby has crossed the embryonic menstruation and will be regarded equally foetus from the adjacent week onwards. The foetus measures 3 centimetres and weighs not more than simply 4 grams. Your babe starts developing very fine details such as fingernails and hair equally it grows each twenty-four hour period. The vital organs –the heart, liver, kidneys, brain and lungs have formed completely and started their part. Tooth buds appear inside the mouth. If the foetus is male, then its testes begin producing testosterone, the male hormone.

Week 11

You are heading towards the cease of the starting time trimester. Your baby starts active movements like kick and stretching. Your baby'due south fingers and toes have separated and the infant grows rapidly from now on until 20 weeks. The face continues to develop and the ears take their concluding location, on the sides of the head. Your babe's head seems larger and is at least one-half the baby's length.

Week 12

This calendar week marks the terminate of your first trimester. Baby'south song cords form this week. Your babe'due south kidneys outset to role as the amniotic fluid your baby swallows is passed out in the form of urine. The eyes which were on the side of the caput come closer together. Encephalon development continues and by the end of this week, your infant may become nigh five.5 centimetre long and weigh around 14 grams.

Week 13 to Week 15

Week 13

You have stepped into the 2d trimester of your pregnancy. You accept your fully developed placenta to provide your infant enough oxygen, nutrients and too dispose waste product. Along with this, the placenta starts producing hormones, progesterone and oestrogen that maintain your pregnancy. Your babe'due south eyelids get fused together in order to protect the developing eyes. Surprisingly, your baby'south unique fingerprints have likewise developed by this time. Your baby measures around 7 to 8 centimetres long and weighs about 23 grams.

Week fourteen

During this week, very fine colourless hair develops and covers about of the baby'southward body. It is called lanugo and it commonly disappears but earlier nascency. Eyebrows besides start growing as do the hair on the scalp. Your baby'southward genitals take too completed development. Your baby can make expressions –squint, frown or grimace and is able to grasp and suck its thumb. Past now your baby'due south torso starts growing faster than the head portion and measures virtually 9 centimetre in length and weighs effectually 43 grams.

Week 15

Your babe is now about fifteen centimetres in length caput to toe and may weigh around 120 grams by the end of this week. The head portion may business relationship for almost 1/3 rd of the infant'southward torso length. If yous have been pregnant before, you lot may kickoff feeling sensations of your infant's movements in this calendar week. Your baby is able to make some facial expressions and has the power of grasping with hands and sucking the thumb. Your baby may beginning exploring inside your womb with its niggling hands! Baby'south vocal chords accept also formed by at present. The amount of amniotic fluid surrounding your baby also increases allowing information technology to motility around freely in the womb. Hair continues growing on the head and eyebrows. The skeletal organization and muscles keep developing due to which baby is able to move his arms and legs.

Week 16 to Week xviii

Week sixteen

Your baby has grown up to the size of a pear fruit and in the following weeks in that location will exist rapid growth in your babe. Your baby is able to concur its head in an cock position and can brand facial expressions such every bit squinting and frowning. Also these activities, your infant may likewise grab agree of the umbilical cord and beginning playing with information technology! The circulatory system and urinary organization are fully functional and your infant inhales and exhales the amniotic fluid through the lungs.

Week 17

Your baby may measure upto 19 centimetres from the head to toe and weigh almost 280 grams by the terminate of this week. Baby's skin appears transparent and wrinkled as the fatty layer underneath has non developed yet. The blood vessels beneath the skin can exist seen and makes the skin appear purple-blood-red. A fine layer of hair called lanugo covers your baby'due south body and protects the tender babe skin until information technology is shed a few weeks before birth. Your baby begins exploring its own body with the hands and in that location is ample amount of amniotic fluid for the baby to swim around and shift position very often.

Calendar week 18

An ultrasound scan is usually done betwixt xviii and 20 weeks during which you may see your babe kicking, move arms or fifty-fifty suck the thumb. Your infant's breast moves up and down when it inhales and exhales amniotic fluid, in a similar way as while animate. The ears accept their terminal position and in following weeks your baby may listen to your voice! The heart ear bones and nerves from the encephalon take developed and your babe can make out sounds of blood gushing through the umbilical cord and your heartbeat. Your baby's bones which have been soft till now start to harden or ossify during this calendar week.

Week nineteen to Week 22

Calendar week 19

By the end of this week, your babe may measure out about 22 centimetre head to toe and weigh around 340 grams. Your baby's fingernails have completely formed and fingerprints can exist seen engraved in their thin skin. Permanent molar buds appear behind the primary tooth buds deep within the gums. A waxy layer chosen vernix caseosa covers and protects your infant'south subtle pare from damage.

Week 20

Yous accept completed almost half of your journeying through pregnancy this calendar week! Your infant grows speedily taking upwardly more space in the womb. As your babe continues growing, you can feel more than force per unit area on your lungs, stomach and bladder. Your baby'south pare develops into layers and becomes thicker below the vernix caseosa. Hairs and nails keep growing.

Week 21

Your baby volition be measuring effectually 25 centimetres from head to toe and weighing slightly less than half a kilogram by this week. Baby's eyelids remain fused merely the retina of the eye has formed completely. Eyelashes and eyebrows have formed. The hair follicles develop pigments that give your baby's hair its colour. At this stage, your baby lies in a crossed position with feet towards one side of your stomach and head on the other side. Bone marrow has at present adult well enough to take over the production of blood cells from the baby'southward liver and spleen.

Week 22

Your baby looks more proportional and weighs effectually 430 grams and nearly 27 centimetres from caput to toe. The first molar buds have appeared in the baby'south gums. By the cease of 22 weeks, baby's nervous system develops completely and the connexion between brain and spinal cord matures. Your baby is at present able to recognise light, sound and feeling of impact, warmth and pain. Gustatory modality buds have begun forming on the tongue. Baby's reproductive organization too continues developing. The testes commencement descending from the belly if it is a baby male child and in girls' uterus, ovaries and vagina would have developed.

Calendar week 23 to Calendar week 25

Calendar week 23

You may observe that your infant tends to be more active this week, particularly during the time when you are resting. The baby adopts a singled-out blueprint of sleep though they sleep for well-nigh of the fourth dimension. By now, your baby may measure up to 28 centimetres and weigh approximately 600 grams. A fatty layer starts forming in between the muscles and skin and covers the claret vessels giving a meliorate skin complexion.

Week 24

At 24 weeks, babies will have increased breathing patterns. A substance called surfactant is produced in the baby'due south lungs and lines the lungs to aid the baby exhale later on it is born. Your baby may weigh more than than 600 grams by now and measure out upward to 30 centimetres in length. Baby's skin is very thin and delicate and has very little amount of body fat.

Week 25

Your baby can now hear and recognise your voice and be calmed by listening to various types of music. Eyelids can open; your baby tin can fifty-fifty blink and react to bright light. Your infant is virtually 33 centimetres in length and may weigh about 800 grams. Baby'due south movements become more than regular and you may observe baby has resting and agile periods.

Week 26 to Week 28

Week 26

Your infant' pare may exist wrinkled though the body weight is about 907 grams. Baby volition steadily gain weight in the post-obit 14 weeks. Every bit the fretfulness in the ear take developed completely, response to sound becomes more than consistent. Infant's encephalon also develops intensely as baby grows at a rapid rate. Your infant continues to take pocket-size breaths of fluid surrounding information technology.

Week 27

In the 27th week of pregnancy, your baby weighs about 1100 grams and measures 37 centimetres. Immune arrangement develops in your baby as your natural antibodies pass into the baby through the placenta. Your baby is at present able to coordinate the 'suck and swallow' activeness which is essential for feeding after birth. The ability to distinguish calorie-free from dark besides develops by now. Your infant will almost appear the way she is going to look at birth except that she is thinner and smaller.

Week 28

By the cease of week 28, your infant may measure about 38 centimetres from head to toe and weigh slightly over m grams. In this week your babe can open its eyes and turn caput towards a continuous bright source of light from exterior. The layers of fat continue to deposit and hair growth also continues. The infant'south brain folds and grooves too develop and aggrandize.

Week 29 to Week 33

Week 29

The third trimester begins from the 29th week and lasts till birth that is effectually twoscore weeks. Your baby weighs about 1350 grams and may be around 40 centimetre in length. Infant'south brain increases in size and becomes more complex. The pupils in the baby'southward eyes can react to light and your babe can focus without much difficulty and view dim shapes. Your baby's movements continue to exist more active and in instance you lot notice decrease in movements, consult your doc.

Week 30

Your baby will continue gaining weight rather than growing in length from now onwards. Your baby may weigh around 1400 grams and go on depositing fatty layers to gain weight. A special kind of fatty chosen dark-brown adipose tissue gets deposited which helps to regulate newborn infant's body temperature and serves as important source of heat product subsequently birth. Well-nigh 1 litre of amniotic fluid may surround your baby now, simply its level decreases as babe grows. Your baby'southward lungs are fully developed and baby may repeatedly movement the diaphragm imitating breathing movements. Your baby may also get hiccoughs which are felt as rhythmic jerky motion within your womb.

Week 31

Your infant now weighs around 1700 grams and looks slightly chubby. The head to toe length of the baby would be about 43 centimetres. Your baby'southward lungs produce more and more than amounts of surfactant, a fatty liquid that keeps the lining of the lungs moist and efficient enough for breathing. The 'suck and swallow' action necessary for the baby to feed afterward birth gets fully coordinated past the end of this week. Your infant may eat some amount of amniotic fluid and too pass several cups of 'urine' through float back into the amniotic fluid effectually it. Yous may feel your baby does not make as many movements equally before, but this is because of lack of infinite in the womb as infant grows bigger.

Calendar week 32

Your babe will have pilus on the head, eyelashes and eyebrows evident by now. The fine hair that had covered infant'south body from the 2nd trimester disappears, only some hairs may persist at birth on the dorsum and shoulders. Your infant keeps practising animate movements by inhaling amniotic fluid and exercising the lungs! If you are carrying a babe boy, his testicles descend from the belly into the scrotum.

Week 33

Your baby will turn around and be in a 'head downward' position until nativity. Babe's movements may alter into stretches and twists as it grows bigger and there is relatively less space to move around in the womb. Your infant will weigh about 2100 grams and measure approximately 45 centimetres in length. During the remaining 6 weeks, the main job for your baby is to grow bigger by gaining weight and to boost the immune system with your antibodies. Now, your baby's brain has billions of well adult nerve cells which help your babe coordinate with the in utero environment by senses of hearing, sight and touch. Your baby will be able to distinguish different flavours, whether sugariness or sour! Your infant is at sleep well-nigh of the times and may even experience dreams!

Week 34 to Week 36

Calendar week 34

At 34 weeks, fatty layers go along to deposit and your baby weighs effectually 2200 grams by at present. Your baby's nervous system continues to mature and the lungs are about fully adult. You tin fifty-fifty talk to your baby as the hearing ability is fully developed. The fine hair (lanugo) has fallen off simply the waxy roofing on your baby's pare, vernix caseosa becomes thicker.

Week 35

Your baby's expected delivery engagement is fast approaching and your babe is at present in normal proportion and plump! Your baby could weigh around 2600 grams and measure out upto 47 centimetres head to toe by this week. Now onwards the overall growth of your baby becomes slow merely weight gain increases considerably to up to approximately 230 grams per week. From this week, the nearly rapid weight gain period begins and fat deposits throughout baby'south body peculiarly around shoulders.

Week 36

Your pregnancy completes total-term by the terminate of this week and you could give birth to your baby whatever fourth dimension from at present! Your babe may weigh near 2700 grams and you lot may feel increasing pressure in the lower part of your abdomen. Your baby's cheeks become chubbier which adds to the fullness of your babe's face up. While your baby'southward head is in the pelvis, the skull bones may likewise move in relation to one another (molding). It facilitates piece of cake passage of your baby through nativity canal.

Week 37 to Week 40

Week 37

Your baby may weigh about 3000 grams and measure out virtually 48.5 centimetres caput to toe length. Your baby is regarded as 'full term' or being on time if born subsequently this calendar week. The thick white layer on infant's peel (vernix) remains, but the fine hair covering the trunk, lanugo would accept disappeared past this calendar week. However, fat continues depositing at the charge per unit of 14 grams a day!

Week 38

You are just 2 week away of holding your little one in your hands! Though baby'southward growth has slowed down, fat still accumulates. Waste matter substances begin collecting in the baby'due south intestines. Dead pare cells, intestinal cells and lanugo hair pile upward to form the greenish-black meconium, baby's commencement bowel movement.

Week 39

Near all of the vernix coated on the baby's skin has disappeared only there may be some remaining in the armpits or groin areas. Your baby's animate exercises usually stop about 24-48 hours prior to commencement of the labour. About 75-100 ml of amniotic fluid remains in the babe's lungs and hormones released during labour initiates absorption of fluid from the lungs into the blood stream. Umbilical cord may become entangled around baby's cervix sometimes, in this case a Caesarean section would be required if it causes problems.

Week 40

Subsequently much of expectations and preparation, yous may welcome your infant this calendar week. Your babe at term may weigh in the range of 2800 grams to 4500 grams and measure somewhere around 46 to 56 centimetres. Your newborn may have slight variations such as misshapen head, vernix coating, skin discolourations, dry patches or rashes. All these are quite normal and volition resolve in few days.

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Source: http://www.monashobstetrics.com.au/baby-growth/