Quite frankly, I'm really surprised the clinic doesn't already have a list of meds that one can take for various ailments. When I was pregnant, my OB (actually it was the nurse
) gave me a pamphlet with more info than I ever wanted, including what meds were generally considered ok.
Of course, now, I work on a floor that houses antepartums and we give stuff there that outside the hospital we'd probably tell pregnant women to avoid. It's just that once they're ill enough to be in the hospital, the benefits of using said med (OTC or not) far outweigh the risks.
If it helps any, though, we usually consult our drug books too.