PregnancyPregnancy ComplicationsPregnancy OutcomePregnancy, AnimalPostoperative ComplicationsPregnancy, EctopicPregnancy Trimester, FirstPregnancy Complications, CardiovascularPregnancy Trimester, ThirdPregnancy RatePregnancy TrimestersPregnancy TestsPregnancy, MultiplePregnancy in DiabeticsPregnancy Trimester, SecondPregnancy, TubalPregnancy Complications, NeoplasticTreatment OutcomeRetrospective StudiesPregnancy Complications, InfectiousPregnancy in AdolescenceAbortion, SpontaneousProspective StudiesInfant, NewbornRisk FactorsPregnancy, High-RiskPregnancy ProteinsGestational AgePregnancy, UnplannedTime FactorsPregnancy, UnwantedPregnancy Complications, HematologicIntraoperative ComplicationsFollow-Up StudiesPre-EclampsiaPlacentaPregnancy, TwinPregnancy, ProlongedFetal DeathAbortion, InducedUterusPregnancy, AbdominalUltrasonography, PrenatalPregnancy Complications, ParasiticQuestionnairesCohort StudiesPrenatal CarePregnancy MaintenanceEmbryo ImplantationSeverity of Illness IndexFertilization in VitroEmbryo TransferDiabetes ComplicationsCesarean SectionDepressionParityMaternal-Fetal ExchangePrenatal Exposure Delayed EffectsBirth WeightObstetric Labor ComplicationsHypertension, Pregnancy-InducedPrevalenceIncidenceSymptom AssessmentMaternal AgeFetal Growth RetardationRisk AssessmentPremature BirthPregnancy Reduction, MultifetalLogistic ModelsInfertility, FemaleReoperationDelivery, ObstetricProgesteroneLaparoscopyCongenital AbnormalitiesObstetric Labor, PrematureCross-Sectional StudiesTomography, X-Ray ComputedAge FactorsTwinsLabor, ObstetricAbnormalities, Drug-InducedFetal DevelopmentCase-Control StudiesFetusPuerperal DisordersDiabetes, GestationalRecurrencePrenatal DiagnosisLactationDeciduaAbortion, TherapeuticLongitudinal StudiesChorionic GonadotropinFetal DiseasesMaternal ExposurePlacenta DiseasesLength of StayTrophoblasts