Genes and chromosomes can sometimes change, causing serious health conditions and birth defects for your baby. Learn about these changes and testing for them.
Prescription opioids are painkillers that include codeine, morphine and oxycodone. Taking opioids during pregnancy can cause serious problems for your baby.
Low birthweight is when a baby is born weighing less than 5 pounds, 8 ounces. Learn about the causes, risks and health-related effects of low birthweight.