title: The impact of family planning programs on unplanned pregnancies.
mesh_terms: D000293:Adolescent; D000328:Adult; D001741:Black or African American; D000367:Age Factors; D001722:Birth Order; D005193:Family Planning Services; D005260:Female; D006801:Humans; D011247:Pregnancy; D011275:Pregnancy, Unwanted; D014481:United States