Month 4

Your pregnancy – Month 4 (16 to 20 weeks)

Your Baby

  • The amniotic fluid increases and baby enjoys moving about freely inside the amniotic fluid.
  • Moves, kicks and swallows.
  • By month’s end, movements may become strong enough for some to be felt.
  • Skin is pink and see-through and hair begins to appear on the head.
  • Kidneys now make urine.
  • Eyebrows and eyelashes begin to grow.
  • By the end of the month, baby is about 10 inches long and weighs about 3/4 of a pound.

Your Body

  • Uterus grows to your belly button.
  • Weight starts to increase by about 3/4 to 1 pound a week now. Belly begins to show and may need to wear maternity clothes.
  • Placenta secretes hormones into body that helps to soften some joints and muscles, helping to make labor and birth easier.
  • May be hungrier more often. Cravings may start for certain foods and continue throughout pregnancy.
  • A line down the middle of abdomen may darken (linea nigra).
  • May be less tired and may begin to find pregnancy enjoyable.
  • Skin may be very dry, hair fuller, and nails grow rapidly.

See next month