1. 4 weeks 5 weeks 6 weeks 7 weeks One Month
Your baby is an embryo consisting
of two layers of cells from which all
her organs and body parts will develop.
4 weeks
5 weeks
6 weeks
7 weeks

2. Two Months
Your baby is now about the size of a kidney bean
and is constantly moving. He has distinct, slightly webbed fingers.
8 weeks
9 weeks
10 weeks
11 weeks
12 weeks

3. Three Months
By now your baby is about 3 inches long and weighs nearly an ounce. Her tiny, unique fingerprints are now in place.
13 weeks
14 weeks
15 weeks
16 weeks

4. 18 weeks Baby begins to hear 19 weeks Lanugo covers baby's skin
Four Months
Your baby is now about 5 inches long and weighs 5 ounces. His skeleton is starting to harden from rubbery cartilage to bone.
17 weeks Fat accumulates
18 weeks Baby begins to hear
19 weeks Lanugo covers baby's skin
20 weeks begun to feel your
baby's movements.

5. Five Months
Eyebrows and eyelids are now in place. Your baby would now be more than 10 inches long if you stretched out her legs.
21 weeks
22 weeks
23 weeks
24 weeks

6. Six Months
Your baby weighs about a pound and a half. His wrinkled skin is starting to smooth out as he puts on baby fat.
25 weeks
26 weeks
27 weeks
28 weeks
29 weeks

7. Seven Months
By now, your baby weighs about 3 pounds and is more than 15 inches long. She can open and close her eyes and follow a light.
30 weeks
31 weeks
32 weeks
33 weeks

8. Eight Months
Your baby now weighs about 4 3/4 pounds. His layers of fat are filling him out, making him rounder, and his lungs are well developed.
34 weeks
35 weeks
36 weeks
37 weeks

9. Nine Months
The average baby is more than 19 inches long and weighs nearly 7 pounds now, but babies vary widely in size at this stage
38 weeks
39 weeks
40 weeks
41 weeks