MifepristoneAbortifacient Agents, SteroidalPregnancyHormone AntagonistsMisoprostolAbortifacient Agents, NonsteroidalAbortion, InducedContraceptives, Postcoital, SyntheticAbortifacient AgentsPregnancy OutcomePregnancy ComplicationsPregnancy, AnimalContraceptives, Oral, SyntheticPregnancy Trimester, FirstPregnancy, EctopicMenstruation-Inducing AgentsLuteolytic AgentsPregnancy RatePregnancy Trimester, ThirdPregnancy Trimester, SecondProgesteronePregnancy Complications, CardiovascularPregnancy TrimestersPregnancy TestsEndometriumAdministration, IntravaginalPregnancy, MultipleLevonorgestrelPregnancy in DiabeticsUterine HemorrhagePregnancy, TubalNorpregnadienesEmbryo ImplantationContraceptives, PostcoitalPregnancy Complications, NeoplasticReceptors, GlucocorticoidLuteal PhasePregnancy in AdolescenceGestational AgeProgestinsContraception, PostcoitalContraceptive Agents, FemalePregnancy Complications, InfectiousMenstruationAbortion, SpontaneousPregnancy ProteinsPregnancy, UnplannedGonanesPregnancy, High-RiskPregnancy, UnwantedUterusCytostatic AgentsReceptors, ProgesteroneLabor Stage, FirstMenstrual CycleDeciduaPregnancy Complications, HematologicPregnanediolAbortion, LegalFallopian TubesVacuum CurettagePregnancy, ProlongedInfant, NewbornPre-EclampsiaPregnancy, TwinPlacentaAdministration, SublingualDanazolOvulation InhibitionFetal DeathParityAlcohol-Induced Disorders, Nervous SystemMetrorrhagiaMegestrolOxytocicsPregnancy, AbdominalPregnancy Complications, ParasiticGlucocorticoidsContraceptives, Postcoital, HormonalPregnancy MaintenanceNorgestrelUltrasonography, PrenatalAlgestoneEmbryo TransferPrenatal CareFertilization in VitroChorionic GonadotropinChorionic Gonadotropin, beta Subunit, HumanMaternal-Fetal ExchangePessariesMenorrhagiaCorticosteroneEstradiolDexamethasonePrenatal Exposure Delayed EffectsEthinyl EstradiolBirth WeightHydrocortisoneClostridium sordelliiUterine Neoplasms