To increase your chances of a healthy pregnancy, see a doctor regularly during your pregnancy and:
Eat healthy foods
Try to keep your weight gain within the recommended range—if you're average weight, gain about 25 to 35 pounds (11 to 16 kilograms)
Don't drink alcohol
Don't smoke and avoid smoke from other people
Only take medicines and supplements that your doctor says are okay
Stay active and get exercise (but avoid contact sports or dangerous activities)
Ask your doctor if you have questions about eating, weight gain, medicines, or other health matters during pregnancy.
You need about 250 extra calories each day while you're pregnant. Most of your extra calories should be protein, which you can get from:
You should also eat plenty of:
Always wash your fruits and vegetables before you eat them.
Undercooked and raw seafood (sushi), eggs, and meat can carry diseases that make you or your baby sick.
Avoid all alcohol (beer, wine, and hard liquor). Drinking alcohol during pregnancy can hurt your baby by causing fetal alcohol syndrome. Talk with your doctor if you're used to drinking daily or feel that it'll be hard to stop drinking. If you drink a lot, suddenly stopping drinking can cause alcohol withdrawal, so your doctor should advise you how to quit.
The poisonous metal mercury can harm your developing baby. Many kinds of fish contain mercury. Some kinds of fish contain more mercury than other kinds. However, because fish is also a good source of protein and other nutrients that are good for you and your baby, doctors recommend that you eat some fish. But eat only the kinds of fish that don't have much mercury. The FDA has a chart on what kinds of fish to eat.
How much weight you gain depends on your size. Most women should gain between 25 and 35 pounds during pregnancy. Women who are overweight should gain a bit less. Try to gain only about 1 to 4 pounds in the first trimester (3 months) of pregnancy. It can become difficult to slow down weight gain later in pregnancy.
Don't try to lose weight during pregnancy, even if you're overweight. Your baby needs food to grow and develop.
While you're pregnant, avoid:
Tobacco smoke can harm your baby. You shouldn't smoke, and you should avoid other people's smoke ("secondhand smoke").
Cats are often have an infection called toxoplasmosis. Even healthy cats can carry it. Cats pass toxoplasmosis in their poop so you can get it by changing litter boxes or cleaning up cat poop. Toxoplasmosis can harm babies in the womb. So if you have a cat, have someone else clean up after it or wear gloves and wash your hands after.
If you get certain infections while you're pregnant, your baby could be harmed.
It's good to try to avoid taking medicines while you're pregnant. Many medicines are safe for your baby, but some are not. Sometimes doctors aren't sure how safe they are.
However, many diseases, such as high blood pressure and diabetes, also are dangerous for your baby. Sometimes it's better to take a medicine that keeps you and your baby healthy even when it's slightly risky. Talk to your doctor about your medicines and the risks of treating versus not treating. If you're taking a dangerous medicine, your doctor often can switch you to a safer one. Check with your doctor before taking any new medicine or supplement, including medicines you can get without a prescription.
The safest time to travel during pregnancy is between 14 and 28 weeks. You shouldn't spend more than 6 hours traveling per day. While traveling:
Air travel isn't usually recommended after 36 weeks of pregnancy, mostly because you could go into labor and have to deliver your baby far from home.