PregnancyPregnancy OutcomePregnancy ComplicationsPregnancy, AnimalPregnancy, EctopicPregnancy Trimester, FirstPregnancy RatePregnancy Trimester, ThirdPregnancy Complications, CardiovascularPregnancy TrimestersPregnancy TestsPregnancy, MultiplePregnancy, TubalPregnancy in DiabeticsPregnancy Trimester, SecondPregnancy Complications, NeoplasticPregnancy in AdolescencePregnancy Complications, InfectiousAbortion, SpontaneousPregnancy ProteinsPregnancy, UnplannedPregnancy, High-RiskPregnancy, UnwantedGestational AgePostoperative ComplicationsTreatment OutcomeBariatric SurgeryInfant, NewbornRetrospective StudiesPregnancy Complications, HematologicProspective StudiesPregnancy, ProlongedPre-EclampsiaPregnancy, TwinPlacentaGeneral SurgeryFetal DeathTime FactorsThoracic SurgeryUterusAbortion, InducedPregnancy, AbdominalPregnancy Complications, ParasiticUltrasonography, PrenatalPregnancy MaintenanceCardiac Surgical ProceduresRisk FactorsEmbryo ImplantationEmbryo TransferFertilization in VitroPrenatal CareFollow-Up StudiesMaternal-Fetal ExchangePostoperative PeriodParityPrenatal Exposure Delayed EffectsBirth WeightSurgery, PlasticCesarean SectionPregnancy Reduction, MultifetalHypertension, Pregnancy-InducedMaternal AgeProgesteroneFetal Growth RetardationLaparoscopyInfertility, FemalePreoperative CareThoracic Surgery, Video-AssistedCohort StudiesPremature BirthCataract ExtractionSurgical Procedures, OperativeSurgery, Computer-AssistedFetusCongenital AbnormalitiesAbnormalities, Drug-InducedLactationPostoperative CareFetal DevelopmentDeciduaLabor, ObstetricObstetric Labor, PrematureCoronary Artery BypassPrenatal DiagnosisTwinsSurgery, OralChorionic GonadotropinMaternal ExposureAbortion, TherapeuticDiabetes, GestationalFetal DiseasesAbortifacient Agents, NonsteroidalTrophoblastsSurgical Procedures, ElectiveDelivery, ObstetricRisk AssessmentPuerperal DisordersAbortion, HabitualInsemination, ArtificialReoperation