Your doctor may recommend iron supplements. By the end of the 4th month, the fetus is 6 to 7 inches long and weighs about 5 ounces. Month 5 Your Baby Fetus becomes more active, turning from side to side and sometimes head over heels. Fingernails have grown to tips of fingers. Fetus sleeps and wakes at regular intervals.
Fetus has a month of rapid growth.
If you haven't already, you will begin to feel Your Baby moving inside you. Be sure to tell your doctor. Your uterus has grown to the height of your belly button. Your heart beats faster. You may need 8 hours of sleep each night.