Week Seventeen: Fat accumulates
You are 17 weeks pregnant. (fetal age 15 weeks)
- The umbilical cord is growing thicker and stronger.
- Fetus weight is just over 5 ounces (150g).
- Baby is about 5 inches (14cm) long crown to rump.
- and would be about 9 inches (23cm) head to toe, if it could stretch
- The retina has become sensitive to light.
- The first stools (meconium) are now beginning to accumulate.
Week Eighteen: Baby begins to hear
You are 18 weeks pregnant. (fetal age 16 weeks)
- The fetus is now 6 inches long and weighs 7 ounces.
- The fetus measures about 15cm and weighs almost 200 grams.
- They can hear sounds and may be startled by loud noises.
- Recognizable active and rest periods.
- The skin is building a protective wax layer (vernix).
Week Nineteen: Genitals recognizable
You are 19 weeks pregnant. (fetal age 17 weeks)
- Fetus is around 6.5 inches (17cm) and 9 ounces (250gm).
- Your placenta continues to grow and nourish the baby.
- Features of your baby's heart, should be visible during an ultrasound.
- Your baby's genitals are distinct and recognizable.
- Scalp hair has sprouted and continues to grow.
Week Twenty: The halfway point
You are 20 weeks pregnant. (fetal age 18 weeks)
You are halfway through your pregnancy, 20 weeks marks the midpoint. Remember, pregnancy is counted as 40 weeks from the beginning of your last period if you go full term.
- Baby now weighs about 11 ounces and is roughly 7 inches long.
- Baby is 17cm long crown to rump, and weighs about 310 grams.
- The baby can hear and recognize the mother's voice.
- The mother will probably start feeling the first fetal movements.
- The toenails and fingernails are growing.
- The growth of hair on the rest of the body has started.
- The skin is getting thicker.
- The heart can now be heard with a stethoscope.