Sexual behavior in pregnancy.
D000293:Adolescent; D000328:Adult; D001290:Attitude; D003075:Coitus; D004522:Educational Status; D005260:Female; D006801:Humans; D007989:Libido; D007752:Obstetric Labor, Premature; D009948:Orgasm; D011187:Posture; D011247:Pregnancy; D012725:Sexual Behavior; D012959:Socioeconomic Factors; D013997:Time Factors; D014481:United States