Pregnancy Development


The hair and eye color, height and sex is determined.

One Month

one monthBy week 4
The heart is beating and the eyes begin to show.

Two Months

two monthsBy week 8
The brain waves can be detected and recorded. She/He has little fingers, is moving around and can even feel! All the major organs are working. The baby is a little over an inch long.

Three Months

three monthsBy week 12
He/She can open their their eyes, move around, swallow and experience hiccups, the ears, mouth and nose are developed. The baby is over 2 inches long.

Four Months

four monthsBy week 16
The eyelashes, eyebrows and some ‘fluff’ on their head is developed. She/He can hear sounds outside of your body, turn somersaults and yawn and stretch. She/He drinks the liquid that surrounds them. The baby is 6 inches long.

Five Months

five monthsBy week 20
At this point you can find out whether it’s a boy or girl. The baby is kicking and moving around a lot now and weighs over 8 ounces and is 10 inches long.

Six Months

six monthsBy week 24
Creases have begun to appear on the fingertips and palms of their hands. She/He is reacting more to sound and can move in rhythm to music she/he hears. The baby is 13 inches long now.

Seven Months

seven monthsBy week 28
She/He can probably dream when asleep and can open their eyelids and look around. She/He can even cry and is 15 inches long and weighs 2 pounds!

Eight Months

eight monthsBy week 32
There’s less movement now because he/she is filling up most of the space in the womb. She/He may already be in the head down position. The baby is 16 inches long and weighs about 3 pounds, 3 ounces.

Nine Months

nine monthsBy week 36
If the baby were born now, she/he would be fine. The baby is 18 inches long and weighs about 5 pounds, 5 ounces.


The growth pattern described above is recognized medical information, documented by scientific research. Slight variation in development days may exist from individual to individual.

The information on this website is for general educational purposes and is not intended to be a substitute for professional counseling. If your situation is an emergency, please call 911.