Understanding Pregnancy Trimesters

Understanding Pregnancy Trimesters

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Each trimester brings new changes for you and your growing baby. Find out what to expect throughout your pregnancy, from the 1st to the 2nd to the 3rd trimester of pregnancy.

NEW! See Baby-to-be at every stage with our fetal development week by week gallery.

Understanding Pregnancy Trimesters

Inside

Chronicles of a Real-Life Pregnancy

First Trimester Pregnancy

Second Trimester of Pregnancy

Third Trimester of Pregnancy

editor's picks

How Pregnant Are You?

First Trimester

Second Trimester

Third Trimester

1 week
2 weeks
3 weeks
4 weeks
5 weeks
6 weeks
7 weeks

8 weeks
9 weeks
10 weeks
11 weeks
12 weeks
13 weeks

14 weeks
15 weeks
16 weeks
17 weeks
18 weeks
19 weeks
20 weeks

21 weeks
22 weeks
23 weeks
24 weeks
25 weeks
26 weeks
27 weeks

28 weeks
29 weeks
30 weeks
31 weeks
32 weeks
33 weeks
34 weeks

35 weeks
36 weeks
37 weeks
38 weeks
39 weeks
40 weeks

pregnancy checklist

Be Ready for Baby: Your Pregnancy To-Do List
Stay on top of your to-dos with our FREE personalized checklist for the next nine months (and beyond!).

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