Marijuana is often thought of as a drug that causes relatively little harm compared to other street drugs. But that may not be the case if you're carrying a little one to term.

Avoiding complications of pregnancy can be hard, especially if diabetes is involved. But doctors have a much better chance of preventing complications if they can properly diagnose diabetes during pregnancy.

The discovery that you're carrying a child inside you brings along a range of emotions. For about 5 to 20 percent of women, those emotions include a fear of childbirth.

Pregnant women need sufficient amounts of iron, which is included in most prenatal vitamins. But like many supplements, taking too much iron can have negative side effects.

Research is uncovering more and more about possible health risks to babies if their mothers are obese during pregnancy. Another one for the list: being born with low iron levels.

What puts women at risk of pregnancy problems? Lots of factors, including illness, obesity and stress. A recent finding says that a type of antibody is also a risk factor.

There are several vaccines pregnant women are advised to get and several others they should avoid while pregnant. The flu vaccine is one pregnant women should consider.

One consideration in undergoing in vitro fertilization ( IVF ) treatment to have a baby is how many embryos to transfer into a woman's womb at once. One? Two? Three?

It's no surprise that smoking is harmful to a pregnant woman's fetus. But smoking can also increase the risk of a woman experiencing a dangerous kind of pregnancy in the first place.

Taking medications during pregnancy is an important decision for a woman. It requires a risk-benefit analysis regarding the value of the drug for the mother versus the possible effects on the fetus.