After weeks of practice, your little one's heart is beating about 120 to 140 beats a minute. You may be able to hear it with a fetal heart monitor. Get more details on pregnancy week 11.
Your Baby at 11 Weeks Pregnant
Meet the beat. Your little one's heart has been beating furiously for weeks, but it's only just become loud enough to hear. A fetus's heart beats twice as fast as yours, anywhere between 120 to 140 beats per minute. The heart has become a proper four-chambered structure over the past month, although some of the dividing walls won't be complete until after birth.
Skin is in. A fine layer of skin has been forming over the fetus's body during the past few weeks. A specialized layer starts to develop into what will become the fingernails and toenails.
Measuring up. Your little one has grown quite a bit since last week — the crown-to-rump length is just over 2 inches. The fetus's head alone is nearly half the length of the body, which shows you how rapidly your little genius is growing.
Your Pregnancy at 11 Weeks
Must have it. Some experts think cravings are your body's way of telling you what it needs. Others disagree. No one really knows why cravings occur during pregnancy, but there's no question that nearly every expectant woman has a yearning for particular foods at some point. You shouldn't slavishly obey your body's demands, but you don't have to ignore them, either, especially if you crave something healthful.
"C" baby grow. While you're pregnant, you need 85 milligrams of vitamin C every day. Vitamin C helps your fetus build new cells and develop healthy bones and teeth. Good food sources include oranges and other citrus fruits, papaya, strawberries, and broccoli.
The Rh test. One of the blood tests you'll have will determine whether you have a specific protein, the Rh factor, on your red blood cells. If you test negative for Rh while the father is Rh-positive, the combination might make your child Rh-positive. This could have serious health consequences for your little one: Your body may make antibodies against the fetus's Rh-positive blood. To prevent this, you'll receive a shot of a substance called Rh immune globulin between your 28th and 29th weeks to neutralize any of the baby's red blood cells that may cross into your circulation. You may also receive a shot after birth to protect future pregnancies.