Learn about baby's development, your body changes, see beautiful color illustrations, and get our special tips for each week of your pregnancy!

First Trimester

menstrual period and cycle
Week 1

1 Week Pregnant

Technically, it's week 1 of your pregnancy, but you still have 2 weeks until fertilization/ovulation.
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2 weeks pregnant
Week 2

2 Weeks Pregnant

It is at the end of week 2 when ovulation and fertilization typically take place.
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pregnancy week 3
Week 3

3 Weeks Pregnant

During the 3rd pregnancy week, the fertilized egg travels trough the fallopian tube.
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week 4 pregnancy
Week 4

4 Weeks Pregnant

You will likely be expecting your period at the end of this week, but it won't happen if you are pregnant!
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week 5
Week 5

5 Weeks Pregnant

By week 5, baby is moving along quickly in the growth process and changes are starting to happen.
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pregnancy fetus week 6
Week 6

6 Weeks Pregnant

The heart has now started beating and can often be seen early in the 6th week by transvaginal ultrasound.
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pregnancy  fetus week 7
Week 7

7 Weeks Pregnant

In the 7th week, your baby is still very small, but many of the crucial organs are developing rapidly.
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pregnancy fetus week 8
Week 8

8 Weeks Pregnant

In week 8, you are more than halfway through your first trimester and baby continues to grow rapidly.
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pregnancy fetus week 9
Week 9

9 Weeks Pregnant

Cartilage develops, bones grow, and baby forms the skeleton that s/he will use to stand, walk and run.
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pregnancy fetus week 10
Week 10

10 Weeks Pregnant

Thanks to the ability of the human body to adapt, morning sickness should be easing off by week 10.
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pregnancy fetus week 11
Week 11

11 Weeks Pregnant

Your baby is now officially called a fetus, and the most crucial development phases are concluding.
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pregnancy fetus week 12
Week 12

12 Weeks Pregnant

Your uterus makes a move upward this week, which (thankfully!) relieves some of the pressure on the bladder.
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pregnancy fetus week 13
Week 13

13 Weeks Pregnant

The alien look of an early fetus on ultrasound disappears. Eyes move closer together and ears shift.
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Second Trimester

pregnancy fetus1 week 14
Week 14

14 Weeks Pregnant

Doppler is commonly used around this time in the first trimester to hear your baby’s heartbeat.
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pregnancy fetus week 15
Week 15

15 Weeks Pregnant

By the 15th week of pregnancy, some parents are itching to find out the sex of the baby.
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pregnancy fetus week 16
Week 16

16 Weeks Pregnant

By the start of the 4th month, you may start noticing movements that feel like little flutters.
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pregnancy week 17
Week 17

17 Weeks Pregnant

The uterus is growing and your bump is likely visible. You may feel better than you have in a long time.
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pregnancy fetus week 18
Week 18

18 Weeks Pregnant

All the changes in the womb are starting to show. Your baby looks like a human and weighs up to 8 ounces.
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pregnancy fetus week 19
Week 19

19 Weeks Pregnant

Lanugo has already been growing on your baby’s skin. Now, vernix caseosa starts to develop.
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pregnancy fetus week 20
Week 20

20 Weeks Pregnant

The 20th week marks the halfway point! Fetal growth continues to add length and weight.
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pregnancy fetus week 21
Week 21

21 Weeks Pregnant

Baby continues to grow, but more attention is paid to internal organs than weight gain.
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pregnant woman week 22
Week 22

22 Weeks Pregnant

An interesting thing happens: you may start to feel better about your body and self-confidence soars.
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pregnancy fetus week 23
Week 23

23 Weeks Pregnant

This week marks a huge milestone: the fetus could survive if an early birth is required.
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pregnancy fetus week 24
Week 24

24 Weeks Pregnant

There is no hiding the pregnancy now as your tummy is growing by leaps and bounds.
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pregnancy fetus week 25
Week 25

25 Weeks Pregnant

Your abdomen is now about the size of a soccer ball which may be causing aches and pains.
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pregnancy fetus week 26
Week 26

26 Weeks Pregnant

The fetus continues to grow rapidly, weighing about two pounds and measuring nine inches or more.
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pregnancy fetus week 27
Week 27

27 Weeks Pregnant

You've reached another huge landmark in pregnancy: the last week of the second trimester!
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Third Trimester

pregnant woman week 28
Week 28

28 Weeks Pregnant

Welcome to your 3rd trimester! Your baby has a 90% chance of survival if born this week.
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pregnancy fetus 29 weeks
Week 29

29 Weeks Pregnant

The fetus is finally starting to look like a baby: the head and body are proportionate and weight gain is rapid.
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pregnancy fetus 30 weeks
Week 30

30 Weeks Pregnant

Your baby's bones have developed and bone marrow has started producing red blood cells.
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pregnancy fetus 31 weeks
Week 31

31 Weeks Pregnant

All necessary body functions are working perfectly. Lung development and weight gain are now the focus.
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pregnant woman week 32
Week 32

32 Weeks Pregnant

By the 32nd week, all five senses are in full working order. Your baby can see, taste, smell, feel and hear.
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pregnancy fetus 33 weeks
Week 33

33 Weeks Pregnant

Fetal brain development is rapid and the size of the head is growing to hold new brain tissue.
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pregnancy fetus 34 weeks
Week 34

34 Weeks Pregnant

Edema is normal during pregnancy, but pitting that lasts over a few seconds can signal preeclampsia.
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pregnancy fetus 35 weeks
Week 35

35 Weeks Pregnant

There is very little room left in the uterus now, so when your baby moves, you will feel it!
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pregnant woman week 36
Week 36

36 Weeks Pregnant

Four weeks to go until the due date now! The body is making some rapid changes.
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pregnancy fetus week 37
Week 37

37 Weeks Pregnant

The fetus weighs around 6½ pounds and practices breathing during every waking moment.
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pregnant woman 38 weeks
Week 38

38 Weeks Pregnant

Hormones are increasing, the cervix is ripening and the baby is shifting lower and lower in the uterus.
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pregnancy newborn baby 39 weeks
Week 39

39 Weeks Pregnant

As the final days of pregnancy become a reality, you may be feeling off balance and clumsy.
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pregnancy newborn 40 weeks
Week 40

40 Weeks Pregnant

Your belly is stretched beyond the imagination and you may have forgotten what your feet look like.
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pregnancy baby 41 weeks
Week 41

41 Weeks Pregnant

For the baby, week 41 is nothing more than an extended vacation but you may be getting antsy.
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pregnancy 42 weeks baby
Week 42

42 Weeks Pregnant

If natural induction techniques have not worked, doctors will commonly admit you to the hospital.
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