Your week-by-week pregnancy calendar

Pregnancy is an exciting time full of many milestones and memories.... Your baby is growing and developing at a rapid pace.... Here is a summary of what baby is doing each week.
Remember that height, weight and other developments are only averages.... Your baby will grow at his own pace.

Pregnancy calendar week by week

Week 1 and 2

Although you are not pregnant during the first and second weeks, doctors use the start of your last period to determine the date of pregnancy.
Ovarian follicles continue to grow until one or two follicles mature and are released during ovulation. This event occurs about 14 days after the start of menstruation.

Week 3

Pregnancy occurs at the beginning of the third week - after ovulation - when the egg is released and fertilized by the father's sperm. After fertilization, the sex, hair color, eye color and other characteristics of the child are determined by chromosomes.

Also read: Everything you need to know about weeks 1 to 4 of pregnancy

Week 4

Your baby has just implanted in the lining of the womb and is now a tiny embryonic pole about 1/25 inch long....their heart is now forming along with arm and leg buds, brain and spinal cord.

Also read: Everything you need to know about 5 to 8 weeks of pregnancy

Week 5

Look at the autograph head to get an idea of the baby's size.... This embryo now has three layers.... The ectoderm becomes their skin and nervous system.
Mesoderm forms bones, muscles, and the reproductive system.... Endoderm forms mucous membranes, lungs, intestines, and other parts...

Week 6

At 6 weeks, the baby's heartbeat can usually be detected as a rapid beat in the ultrasound.

Week 7

The baby's face is slowly defined this week.... Their hands and feet are paddle-like and slightly larger than the tip of a pencil eraser.

Week 8

Your baby has now progressed from fetus to fetus, measuring an inch from the back of the neck to the rump and weighing less than 1/8 ounce.

Read more: The position of the fetus in the eighth week

Week 9

The baby's heart beats regularly, fingers and toes sprout, and his head and brain continue to grow... Soon all the body parts will start working together.

Week 10

Boy or girl?... The baby's reproductive system starts to develop this week, although you can't tell the gender on the ultrasound yet.

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Week 11

Your baby is about 2 inches long and weighs 1/3 ounce...most of the length and weight is in the head area.

Week 12

The fetus is 3 inches long and weighs about 1 ounce... Her vocal cords are starting to form and her kidneys are working.

Week 13

Welcome to the second trimester!.. your baby has started urinating in the amniotic fluid and his intestines have moved from the umbilical cord to the abdomen.... the most dangerous part of your pregnancy is over and the chance of miscarriage is reduced to only 1-5%.

Also read: Everything you need to know about 9 to 12 weeks of pregnancy

Week 14

Baby weighs about 1 1/2 ounces this week and is about 3 1/2 inches long.

Also read: Everything you need to know about the 13th to 16th week of pregnancy

Week 15

If you have an ultrasound this week, you may be able to see your baby's first bones.

Week 16

Your little one is 4-5 inches from head to tail and weighs about 3 ounces....what's happening this week?..they are starting to suck with their mouth.

Learn more: Hot flashes in pregnancy; From reasons to effective home remedies

Week 17

Fat deposits that keep the baby warm and give him energy accumulate under the skin.... The baby weighs 7 ounces and is 5 1/2 inches long.

Week 18

This week is a big week for your baby's senses... his ears are growing and he may hear your voice... His eyes may begin to recognize light.

Week 19

You may have wondered how a baby's skin can be exposed to amniotic fluid for so long....This week, vernix caseosa covers their body....these waxy substances act as a protective barrier against wrinkles and scratches.

Also read: All you need to know about the 17th to 20th week of pregnancy

Week 20

Talk to your baby....starting this week they can hear you!...baby weighs about 9 ounces this week and has grown to 6 inches....you should be able to feel the kicking inside your womb by now.

Week 21

Your baby is now able to swallow and has fine hair called longus covering most of his body. By the end of this week, your baby will be about 7.5 inches long from the top of his head to the bottom of his rump and weigh a full pound.

Week 22

Although the baby still has a lot of growing to do, the ultrasound images are more than you might think.

Week 23

At this stage, you will probably feel a lot of kicking and kicking due to the baby moving in its limbs. Babies born at 23 weeks can survive for months in intensive care, but they may also have disabilities.

Week 24

Your baby is now 1 foot tall and weighs 1.5 pounds.... Their taste buds are forming on their tongue and their fingerprints and footprints are almost complete.

Week 25

At 25 weeks pregnant, your baby's jump reflex is developing.... You may also notice that he has specific rest and activity times.

Week 26

Your little one is about 13 inches this week and weighs just under 2 pounds....your baby's hearing has improved by now and may recognize your voice....try singing to him or reading for fun.

Week 27

The growth of the baby's lungs and nervous system continues this week.... Now is a good time to follow the baby's movements.... If you notice a decrease in movement, call your doctor.

Week 28

The baby's brain is starting to grow this week... deep ridges and depressions are forming and the amount of tissue is increasing.

Week 29

You're done!.. At the beginning of the third trimester, your baby is 10 inches long and weighs just over 2 pounds.

See more: Good Gynecologist

Week 30

Baby weighs 3 pounds this week and is 10 1/2 inches tall....His eyes are open when he wakes up and his bone marrow is collecting red blood cells.

Week 31

The baby measures 15 to 17 inches from head to hip and weighs about 4 pounds. Now the eyes can focus and reflexes like thumb sucking are likely to begin.

Week 32

If your baby is born after 32 weeks, with medical help, they have a very good chance of survival... their nervous system has developed enough to regulate their body temperature.

Week 33

You probably know that your baby sleeps a lot, but did you know that he might be dreaming? That's right!.. Their lungs are also almost developed to this stage.

Week 34

At 34 weeks pregnant, the baby is about 17 inches.... Their nails are fully grown to the tips of their fingers and the vernix is thicker than before.

Week 35

Now begins the fastest phase of baby weight gain - up to 12 ounces per week.... Right now, they're about 5 pounds 5 ounces....most of their fat is gathered around the shoulders.

Week 36

The baby is 17-19 inches from the top of the head to the crotch and weighs 5-6 pounds....The uterus is running out of space, so it may move a little less than normal.... Talk to your doctor about counting heartbeats to assess fetal health.

Week 37

Your baby is now gaining about half an ounce of fat per day, and the baby's major organs are ready to leave the womb.

Week 38

At 38 weeks, the baby is over 18 to 20 inches long and weighs 6 pounds, 6 ounces.

Week 39

Congratulations! Your child is officially full term.

Fortieth week and after that

Most babies born at 40 weeks are about 19 to 21 inches long and weigh between 6 and 9 pounds.

Boys usually weigh more than girls...remember only 5% of babies are born on time...don't be surprised if you go into labor a few days or even a week earlier or later.

Outlook

No matter where you are in your pregnancy, something interesting is happening.
Remember that your doctor is always your best resource when it comes to your pregnancy and your baby's health. If you have concerns about the growth process, write down your questions for the next appointment.

For advice on childbirth and pregnancy, you can refer to doctors specializing in childbirth and pregnancy.