Breast-feeding helps prevent babies’ allergies, but there’s no good evidence for avoiding certain foods during pregnancy, using soy formula or delaying introduction of solid foods beyond six months.

Researchers presented a conundrum to new mothers on Monday, saying that women who want to lose the extra weight gained in pregnancy should try to get more sleep.

Pregnancy doesn't have to mean nine months of sleep deprivation, a noted sleep expert says.

Obese pregnant women may have an increased risk of losing their baby relatively late in pregnancy, and black women appear particularly at risk, a large study suggests.