Hi Gabysmum,

There's an amino acid called L-Lysine which cuts the severity of an outbreak and its also a preventative for further outbreaks, and its safe during pregnancy. (Blackmores and other similar vitamin companies all make L-Lysine capsules)

Otherwise there's Zovirax and Famvir tablets (need a prescription for both) and they're in the B1 category of safe things to take during pregnancy... so they should be ok i think... anything over A, B, B1 categories they say to think twice and does the problem itself outway the risks for taking it whilst pregnant.