Pregnancy ComplicationsPregnancyPregnancy OutcomePre-EclampsiaHypertension, Pregnancy-InducedPregnancy Complications, CardiovascularDiabetes Mellitus, Type 1Pregnancy Complications, HematologicDiabetes MellitusFemale Urogenital Diseases and Pregnancy ComplicationsPregnancy Trimester, FirstDiabetes Mellitus, Type 2Pregnancy, EctopicAbortion, SpontaneousPregnancy Complications, NeoplasticFetal Growth RetardationAbruptio PlacentaeDiabetes, GestationalPremature BirthPregnancy, AnimalPlacentaDiabetes ComplicationsPregnancy Trimester, SecondUterine ArteryPregnancy Trimester, ThirdPostoperative ComplicationsCivil DisordersPlacenta DiseasesPregnancy Complications, InfectiousEclampsiaInfant, NewbornObstetric Labor, PrematurePregnancy, TwinRisk FactorsGestational AgePlacental CirculationCongenital AbnormalitiesTrophoblastsFetal DeathPreconception CarePregnancy, High-RiskCesarean SectionPregnancy, MultipleObstetric Labor ComplicationsStillbirthPrenatal CareInfant, Small for Gestational AgeUterusDiabetes Mellitus, ExperimentalBirth WeightAbortion, HabitualUltrasonography, PrenatalPregnancy ProteinsRetrospective StudiesPregnancy in DiabeticsMaternal AgePregnancy RateProspective StudiesParityAntibodies, AntiphospholipidPlacental InsufficiencyPregnancy TrimestersPlacentationMultiple Birth OffspringPregnancy TestsMaternal-Fetal ExchangeDelivery, ObstetricCohort StudiesBlood GlucosePregnancy, TubalAntiphospholipid SyndromeFetal DevelopmentOdds RatioInfant, Low Birth WeightMaternal WelfareReproductive Techniques, AssistedFetal Membranes, Premature RuptureFertilization in VitroTreatment OutcomeLogistic ModelsHemoglobin A, GlycosylatedRisk AssessmentPregnancy in AdolescenceIncidenceDeciduaHypoglycemic AgentsThrombophiliaPrevalenceTime FactorsUnited StatesCase-Control StudiesInsulinPregnancy, UnplannedFollow-Up StudiesPregnancy, UnwantedHomocysteineQuestionnairesIntraoperative ComplicationsNorwayBiological Markers