Gestational AgePregnancyPregnancy OutcomePregnancy ComplicationsAbortion, InducedInfant, Small for Gestational AgeAbortion, SpontaneousInfant, NewbornAbortion, HabitualPregnancy, EctopicGravidityPregnancy Complications, CardiovascularPregnancy Trimester, FirstStillbirthFetal DeathParityAbortion, TherapeuticPregnancy, AnimalObstetric Labor, PrematurePuerperal DisordersPregnancy Complications, NeoplasticDilatation and CurettageUltrasonography, PrenatalPregnancy RateCesarean SectionInfant, PrematurePre-EclampsiaBirth WeightBirth IntervalsPregnancy, High-RiskPregnancy Trimester, ThirdPregnancy in AdolescenceAbortion, EugenicPrenatal DiagnosisDelivery, ObstetricPregnancy Trimester, SecondPlacenta DiseasesFetal DiseasesUterine RuptureMaternal AgeInfertility, FemalePreconception CarePrenatal CarePostpartum PeriodRisk FactorsPregnancy TrimestersPremature BirthObstetric Labor ComplicationsPregnancy, MultipleFetal Growth RetardationPregnancy in DiabeticsUterusCohort StudiesRetrospective StudiesRecurrenceInfant, Low Birth WeightProspective StudiesPregnancy TestsFetusPregnancy, TubalFertilization in VitroPregnancy Complications, InfectiousFetal DevelopmentPlacentaInfant, Premature, DiseasesTime FactorsFertilityAmniotic FluidPregnancy, TwinCrown-Rump LengthPregnancy ProteinsTwinsFollow-Up StudiesPregnancy, ProlongedIncidenceInfant, Very Low Birth WeightPregnancy Complications, HematologicPregnancy, UnplannedFetal HeartMaternal-Fetal ExchangeTerm BirthPregnancy, UnwantedPrenatal Exposure Delayed EffectsApgar ScoreInfant MortalityIntensive Care Units, NeonatalHypertension, Pregnancy-InducedUmbilical ArteriesCongenital AbnormalitiesLabor, ObstetricMaternal ExposureFetal WeightPregnancy Complications, ParasiticEmbryonic and Fetal DevelopmentChild DevelopmentFetal BloodReference ValuesRespiratory Distress Syndrome, NewbornInfant, Newborn, DiseasesPregnancy Reduction, Multifetal