Will anything bad will happen to my unborn baby if my husband did oral sex on me then found out he had strep?

Strep. 30 % of women are carriers for group b strep. The baby will only potentially be effected if the amniotic sac ruptures and the mother is not treated for this positive carrier status with antibiotics. As it is the type of strep that is found in the oral cavity is not group b. There should be nothing for you to worry about in this situation.