Check out what happened with your little one last week.
Hello, hair. By the end of the week, your little one's scalp hair pattern will be established for life. Some hair might begin to sprout, although it's usually not evident for a few more weeks. Of course, this is no guarantee that your baby will be born with a full head of hair; some babies stay bald until several months after birth. Ultrafine, soft hair called lanugo is also appearing over your fetus's entire body. This downy hair, which protects the delicate skin from the amniotic fluid, usually disappears just before or after birth.
Thin skinned. Underneath that lanugo is a fine layer of skin through which you can see blood vessels, which are already transporting blood. Mouth development continues—your little one may even be sucking on a thumb right now—and facial movements are a regular occurrence.
Measuring up. If you could peek inside your uterus, you'd see a tiny fetus that weighs anywhere from 1.7 to 2.5 ounces and measures 4.1 to 4.5 inches from crown to rump—about the size of a small grapefruit.
Get-up-and-go. By this point, the nausea and fatigue you may have experienced in the first trimester have probably subsided. Many women report that they now start to feel energized. If you're one of the fortunate who have that extra oomph, enjoy it! Take a walk, plant some flowers, or start planning the baby's room.
Not so swell. Now is also the time when you may start to notice some mild swelling, called edema, in your extremities. Swollen feet and ankles are the most common. You may also experience some swelling in your hands, causing the rings on your fingers to fit more tightly. Edema occurs when fluid is pushed from the bloodstream into the soft tissues. As with many pregnancy complaints, it's caused by the increased blood circulating through your body and the pressure of your growing uterus on the pelvic veins. The best way to prevent edema is through mild exercise: a walk, a swim, a yoga class. Also, rest frequently with your feet elevated (if anyone deserves to put her feet up, it's you), and be sure to drink eight glasses of water every day. If you experience anything more than a little fullness in your feet or hands, or if you also have puffiness in your face or eyes, contact your health care provider.
From the experts. Those same hormones that are growing hair on your baby's head might be causing yours to thicken ... or to fall out. "Ordinarily we shed about 100 hairs a day. During pregnancy these normal phases of hair growth are altered," explains Elaine Zwelling, R.N., Ph.D. Click here for tips from Dr. Zwelling on minimizing hair loss.