http://www.w3.org/ns/prov#value | - Causes of Abnormal Bleeding for Pregnant Women: Heavy vaginal bleeding or bleeding that occurs before 12 weeks may indicate a serious problem such as an Ectopic pregnancy or miscarriage.Heavy vaginal bleeding or bleeding that occurs after 12 weeks also may indicate a serious problem, such as placenta previa.Other Causes: OvulationHormone imbalanceBirth control pillsAn intrauterine device (IUD)Infe
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