There is a movement in the uterus. Baby begin to inhale and exhale amniotic fluids through lungs. Its height is 4.4 inches and weight 100 grams.

Week 18 :

              Mother may feel a little bit uncomfortable at night as the uterus is almost at her belly button. Baby’s height is 5 inches and weight is approximately 150 grams.

Week 19 :

               Mother’s skin undergoes changes and she may develop rashes on the skin.   Now the baby’s height is 6 inches and weight is 200 grams.

Week 20 :

               Mother can fully feel the movements of her baby. Baby’s heights are 5.6 inches and weight is (9 ounces) approximately.

Week 21 :

               At this stage mother should not be too edgy about food intake. She should feel at ease now. Baby‘s skin is covered by a fatty substance. Its height now is 7.2 inches. Its weight is 300 grams.

Week 22 :

               Mother may feel pain on her back due to the extra weight. The baby can hear the voice of her mother. Baby’s height now is 7.5 inches and weight 350 grams.

Week 23 :

              Mother may have Braxton Hicks contraction. They are not harmful to the baby. Now the baby is in full form. It height is 8 inches and weight 455 grams.

Week 24 :

             Mother should take medical tests as she may have temporary diabetes which may prove to be a cause for low blood sugar in the baby’s body. Baby’s height is 8.4 inches and the weight 540 grams.