Pregnancy OutcomePregnancyAbortion, SpontaneousAbortion, HabitualPregnancy ComplicationsPregnancy Trimester, FirstAbortion, ThreatenedPregnancy RateFetal DeathPregnancy, AnimalInfant, NewbornPregnancy, EctopicPremature BirthPregnancy Complications, CardiovascularPregnancy Trimester, SecondGestational AgeStillbirthPregnancy Trimester, ThirdPregnancy Complications, InfectiousInfant, Low Birth WeightCongenital AbnormalitiesPregnancy, MultipleAbortion, IncompleteMaternal AgePre-EclampsiaTreatment OutcomeFertilization in VitroPregnancy Complications, NeoplasticPregnancy TrimestersLive BirthPrenatal CarePregnancy in DiabeticsBirth WeightPregnancy, High-RiskPregnancy Complications, HematologicObstetric Labor, PrematureAbortion, InducedUltrasonography, PrenatalEmbryo TransferInfertility, FemaleEmbryo ImplantationRetrospective StudiesFetal Growth RetardationPlacentaAbortion, MissedPregnancy in AdolescenceProspective StudiesRisk FactorsCesarean SectionParityPregnancy, TubalPregnancy TestsAbnormalities, Drug-InducedUterusPlacenta DiseasesInfant, Small for Gestational AgeOutcome Assessment (Health Care)Reproductive Techniques, AssistedSperm Injections, IntracytoplasmicDiabetes, GestationalCohort StudiesPregnancy ProteinsPreconception CareHypertension, Pregnancy-InducedInfertilityHistocompatibility, Maternal-FetalDilatation and CurettageGestational SacAbortion, TherapeuticPregnancy Complications, ParasiticMaternal ExposureTrophoblastsFetal MacrosomiaDelivery, ObstetricGravidityUterine HemorrhageChorionic GonadotropinCrown-Rump LengthOvulation InductionTime FactorsInfant MortalityPregnancy Reduction, MultifetalPregnancy, TwinOocyte DonationMaternal-Fetal ExchangeChorionic VilliFertilityEndometriumBirth RateAbruptio PlacentaePregnancy, ProlongedCase-Control StudiesPrenatal DiagnosisFollow-Up StudiesPregnancy, UnplannedApgar ScorePrenatal Exposure Delayed EffectsDeciduaFetal ResorptionFetal Development