Swaddle your baby to keep her warm and cozy. Here's how.
Week-by-Week Pregnancy
Here's your one-stop guide to every week of pregnancy. Click on any week for a more detailed description of your pregnancy.
Week 1: You're actually not pregnant yet—the clock starts ticking from the first day of your last period. So even though pregnancies are said to be 40 weeks long, you only carry your baby for 38 weeks. Read more about being 1 week pregnant.
Week 2: Ovulation occurs. For the best chances of getting pregnant, have sex one to two days before your expected ovulation date. Read more about being 2 weeks pregnant.
Week 3: You may be pregnant but probably won't have any symptoms. Read more about being 3 weeks pregnant.
Week 4: Positive test: You're pregnant! You may be starting to feel bloated, crampy, tired and moody, and experiencing sore breasts, nausea/vomiting and a frequent need to pee. But don't worry if you're not—that's normal. Read more about being 4 weeks pregnant.
Week 5: Though the embryo is only about the size of a grain of sand, the heart is pumping blood, most other organs have begun to develop, and arm and leg buds appear. You may be starting to experience "pregnancy brain." Read more about being 5 weeks pregnant.
Week 6: Now that the pregnancy is feeling more real, you might be worrying about miscarriage. Read more about being 6 weeks pregnant.
Week 7: The embryo doubles in size but is still less than a half-inch long. As your pregnancy hormones increase, morning sickness may be worsening. Or, you may be ravenous 24/7. Read more about being 7 weeks pregnant.
Week 8: Your doctor may look or listen for the baby's heartbeat with an ultrasound. Once you see or hear it, your miscarriage risk drops to about 2 percent. He'll also give you an official due date—though very few women actually deliver on that day. Read more about being 8 weeks pregnant.
Week 9: The pressure of your growing uterus on your bladder may cause you to leak small amounts of urine. Read more about being 9 weeks pregnant.
Week 10: Your inch-long baby is now called a fetus. While the icky side effects of pregnancy may be starting to abate, your anxiety about having a healthy baby might be increasing. Read more about being 10 weeks pregnant.
Week 11: Your cravings may run the gamut from cheeseburgers to chalk (really!). Weird nonfood cravings are known as pica and can reflect a deficiency in your diet. This week, nearly all of the fetus's organs are beginning to function, and genitals begin to take on male or female form. Read more about being 11 weeks pregnant.
Week 12: Your uterus has begun to expand outside the protective pelvic bones. It will increase in size by almost 1,000 times by the end of your pregnancy! You may really be starting to show now, especially if it's not your first baby. Read more about being 12 weeks pregnant.
Week 13: Now that you've finished your first trimester, you can start eating for two—a little. Plan on gaining about 12 pounds during the next 14 or so weeks. Read more about being 13 weeks pregnant.
Week 14: Your renewed energy (and end to morning sickness) may lull you into thinking you can take on a marathon, but follow this guideline: Work out only so hard that you can carry on a conversation without getting out of breath. Read more about being 14 weeks pregnant.
Week 15: The "window of opportunity" for many important screening and diagnostic tests opens this week, should you decide to undergo them. Read more about being 15 weeks pregnant.
Week 16: Sometime between 16 and 22 weeks, you'll start to feel your baby move. Read more about being 16 weeks pregnant.
Week 17: Your sleep may be marked by vivid and bizarre dreams, often reflecting anxiety you might have about childbirth and parenthood. Read more about being 17 weeks pregnant.
Week 18: Just when you thought you couldn't possibly take any more pee breaks, you do. It's inevitable: As your baby grows, your bladder shrinks (or so it seems). Read more about being 18 weeks pregnant.
Week 19: Now that you're feeling better, it's time to spend some quality time with your partner. So have sex! Unless you're having complications, it's safe for most women throughout pregnancy. Read more about being 19 weeks pregnant.
Week 20: You're halfway there, which means your uterus has reached your navel! The nesting urge is probably kicking in. Have fun with it, but don't go overboard and exhaust yourself. Read more about being 20 weeks pregnant.
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