Second Trimester

Weeks 13 - 16

100

During this week, the fetus develops reaction to sensory information.

Week 16

200

During this week, the fetus develops vocal cords. 

Week 13

300

During this week, the fetus uses amniotic fluid to practice breathing while its lungs continue to develop. 

Week 15

Weeks 17 - 20

100

During this week, the fetus develops varnix.

Week 17

200

During this week, the fetus develops the area of the brain responsible for the five senses.

Week 20

300

During this week, the fetus develops lanugo.

Week 18

Weeks 21 - 24

100

During this week, the fetus develops limb movements which are coordinated and frequent.

Week 21

200

During this week, the fetus is able to touch and hear.

Week 22

300

During this week, the fetus is considered viable to live outside the womb if born prematurely.

Week 23

Weeks 25 - 28

100

During this week, the fetus produces melanin. 

Week 26

200

During this week, the fetus develops its nervous system. 

Week 25

300

During this week, the fetus develops the ability to open and blink its eyes. 

Week 27

Complications

100

Pregnancy induced high blood pressure.

Preeclampsia 

200

The placenta is attached to the cervix.

Placenta Previa

300

Pregnancy induced diabetes.

Gestational Diabetes