Having many children may wear you out, but some unexpected health benefits have been linked to having multiple pregnancies - a lower risk of developing multiple sclerosis.

Smoking is associated with a number of complications for babies in the womb, including early deliveries and underweight babies. Scotland's smoking ban made in dent in both of these.

Expectant mothers with depression or anxiety may debate whether to continue or cease taking their mood meds during pregnancy, and it appears their babies are likely affected either way.

Probiotics are food with live and active beneficial bacteria for the body that have been gaining popularity in the U.S. - and soon they may be in baby's formula.

Miscarrying a child is a difficult, emotional experience for a woman. Some women who experience first-trimester loss choose to lose the baby naturally, without immediate medical intervention.

Giving birth between 22 and 26 weeks can involve painful decisions, given the various risks to the baby, which has about a 50 percent chance of survival.

Arriving early is great for meetings or work - but not for birth. Even babies born a couple weeks early are at a higher risk for developing health problems later.

Although gaining too much or too little weight during pregnancy can cause problems for the baby, cognitive problems are not among them.

Using ecstasy is no way to escape the discomfort of pregnancy. The first study to look at its impact on babies reveals it can cause developmental delays that might spell trouble later.

Babies unable to grow to the size they're genetically supposed to reach suffer from intrauterine growth restriction, a risk factor for future cardiovascular problems.