Week 20 of Pregnancy

Baby Size Comparison in Week 20

In week 20 of pregnancy your baby measures about 16.5 cm long and weighs about 300 grams: roughly the size of Banana. Remember these are approximate averages from standard growth charts; every baby grows at their own pace, and your doctor follows your baby's personal growth curve across visits, not a single number. If an ultrasound measures a little bigger or smaller than average, that is usually normal as long as growth continues at a steady rate.

Baby Development in Week 20

Halfway there! The baby is now the size of a banana and weighs about 300 grams. It regularly swallows amniotic fluid, training its digestive system for digestion, and its intestines produce a dark substance called meconium (the first stool it will pass after birth). The bone marrow produces blood cells, and the sebaceous glands work.

The hair, eyebrows, and eyelashes are visible, and the nails are complete. The baby's sex can usually be known by ultrasound with high accuracy this week. The fetus sleeps and wakes in a pattern that has begun to regularize, and its movements are strong; most mothers now feel them clearly, especially in quiet evening hours. The lungs practice with breathing movements of the amniotic fluid.

The fetus regularly swallows amniotic fluid, training its digestive system, and its intestines produce the dark meconium (the first stool after birth). The bone marrow produces blood cells, and the sebaceous glands work. The hair, eyebrows, and eyelashes are visible, and the nails are complete. The baby's sex can usually be known by ultrasound with high accuracy. The fetus sleeps and wakes in a pattern that has begun to regularize, and its movements are strong; most mothers feel them clearly in quiet evening hours. The lungs train with breathing movements of the amniotic fluid.

Your Body Changes in Week 20

Your navel may begin protruding outward (an outie belly button); it is normal and temporary. Heartburn intensifies as the uterus presses on the stomach, and mild ankle swelling in the evening is common.

Leg cramps, back pain, and varicose veins are daily matters. You may feel short of breath climbing stairs. Vaginal discharge increases. Emotionally: the middle of pregnancy brings a feeling of achievement, and seeing the baby in the detailed ultrasound is a moving moment for both parents. Total weight gain is 4 to 7 kilograms. Watch for danger signs: bleeding, severe persistent pain, or leaking fluid.

The protruding navel is normal and will return after birth. Evening ankle swelling eases with raised feet. Heartburn is treated with small meals and a raised head. And watch for danger signs: bleeding, severe pain, or leaking fluid.

Practical Tips for Week 20

• The detailed anatomy ultrasound appointment is usually between weeks 18 and 22; do not miss it.
• Raise your feet when they swell and avoid standing for long; wear comfortable shoes.
• Eat small, frequent meals to ease heartburn; avoid eating before bed.
• Start planning the baby's room and the list of essential supplies without rushing.

Frequently Asked Questions About Week 20