1st 3 months

2nd 3 months  

3rd 3 months  

Pregnancy Health Care  

Pregnancy Development - 2nd Trimester

WEEK 13

  • My mouth, nose and external ears are completely developed.
  • I am 3" long and weigh one ounce.

WEEK 14

  • My hair is growing.
  • I'm developing my muscles and exercising energetically.
  • I'm growing up quick-I'm now 4" tall and weigh over 2 ounces, maybe the doctor will let you hear my heartbeat.

WEEK 15

  • I have eyebrows, eyelashes, and some "fluff" on my head.
  • I can probably hear your heartbeat, your stomach rumbling, and the sweet sound of your voice.
  • I am over 5" long.

WEEK 16

  • I enjoy drinking a lot of the fluid when it is sweet, but not when you've eaten something sour.
  • I can turn somersaults!
  • I yawn and stretch.
  • I'm 6" long.

WEEK 17

  • I'm getting my finger and toe nails.
  • My skin is developing.
  • My sex can be seen by ultrasound if I pose just right.
  • I'm now 7" tall!

WEEK 18

  • I can hear sounds outside of your body- if it's loud, I'll jump!
  • I like testing my reflexes, kicking and punching with well-formed arms and legs (you may begin to feel me now) .

WEEK 19

  • If you haven't felt me kicking by now, maybe you will this week.
  • I'm drinking a lot. The liquids that surround me are always fresh because they are replenished every 6 hours.
  • I am now 9" long.

WEEK 20

  • I'm kicking and moving around a lot, so you better get used to it!
  • I'm 10" tall and weigh a little more than 8 ounces.

WEEK 21

  • I have a special skin that protects me in the womb but it will dissolve before you see me.
  • I am now 11" long and weigh just under a pound.

WEEK 22

  • You may feel a jerking motion but don't worry, it's just me with hiccups!
  • You should begin to notice my responding to sound- I like it when you sing.

WEEK 23

  • Creases have begun to appear on my fingertips and the palms of my hands.
  • You can hear my heartbeat through a stethoscope, or, if someone puts their ear against your tummy.

WEEK 24

  • I'm reacting more to sound- I'll move in rhythm to music I hear.
  • I'm 13" tall now.

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