When you are 20 weeks pregnant, you may notice a darkening of the line between your belly button and pubic area (linea nigra). It will fade after delivery.
As your baby grows, pressure is being put on your lungs, stomach, bladder and kidneys; causing frequent urination, a shortness of breath with exercise, and indigestion or heartburn. You may also be perspiring more, as your thyroid is more active.
If you notice vaginal discharge that is thin, milky-colored, and has a slight odor do not be alarmed. This is normal. However, call your care provider if your discharge becomes thick and yellowish, very watery, or bloody -- these could be signs of a more serious problem.
If you haven't already had one, your health care provider may recommend that you receive an ultrasound, a diagnostic test that uses sound waves to create an image. An ultrasound can determine the size and position of the fetus, and any structural abnormalities of bones and organs that are visible along with the umbilical cord, placenta, and amniotic fluid.
When you are 20 weeks pregnant, your baby measures about 5.6 to 6.4 inches and weighs about 9 ounces. Your baby is starting to grow hair on his or her head, eyebrows are forming and if your baby is a girl her uterus is now forming. Nail growth begins.
Your baby can hear sounds now, and it will cover its ears with its hands if a loud sound is made near you or move if it is startled.
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