ErythromycinPregnancyPregnancy OutcomePregnancy ComplicationsErythromycin EstolatePregnancy, AnimalPregnancy, EctopicErythromycin EthylsuccinateAnti-Bacterial AgentsPregnancy Trimester, FirstPregnancy RatePregnancy Trimester, ThirdMacrolidesLeucomycinsLincomycinPregnancy Complications, CardiovascularMicrobial Sensitivity TestsPregnancy TrimestersSaccharopolysporaPregnancy TestsPregnancy, MultiplePregnancy in DiabeticsClindamycinPregnancy, TubalPregnancy Trimester, SecondDrug Resistance, MicrobialAzithromycinPregnancy Complications, InfectiousPregnancy Complications, NeoplasticPregnancy in AdolescenceRoxithromycinKetolidesJosamycinDrug Resistance, BacterialAbortion, SpontaneousPregnancy ProteinsPregnancy, UnplannedPregnancy, High-RiskPregnancy, UnwantedTetracyclineInfant, NewbornGestational AgePregnancy Complications, HematologicGastrointestinal AgentsStreptococcus pyogenesStreptococcus pneumoniaePregnancy, ProlongedPre-EclampsiaPregnancy, TwinPlacentaClarithromycinStreptococcal InfectionsFetal DeathMiocamycinVirginiamycinLincosamidesAbortion, InducedUterusPregnancy, AbdominalPregnancy Complications, ParasiticPregnancy MaintenanceUltrasonography, PrenatalEmbryo ImplantationMotilinEmbryo TransferPrenatal CarePenicillinsFertilization in VitroOleandomycinChloramphenicolMaternal-Fetal ExchangePrenatal Exposure Delayed EffectsTroleandomycinParityBirth WeightCampylobacter coliTime FactorsGastric EmptyingTetracycline ResistancePenicillin ResistancePregnancy Reduction, MultifetalMethyltransferasesAbnormalities, Drug-InducedCesarean SectionMaternal AgeHypertension, Pregnancy-InducedPneumococcal InfectionsProgesteroneFetal Growth RetardationProspective StudiesStreptococcusPremature BirthAnti-Infective AgentsInfertility, FemaleStaphylococcusFetusStaphylococcus aureusDrug Resistance, Multiple, BacterialLactationFetal Development