There seems to only be one choice besides penicillinG, according to their protocols, and that's clindamycin.

I'm not even sure abx are the right thing to do - there are risks to having them, as much as not.

Aaah, the beauty of motherhood. Choices that are damned if you do damned if you don't, and you're fucked no matter what you choose. It sucks, really, but its all part and parcel of motherhood.