If you took
augmentin, and it cleared up for you, it was a
UTI and not an STI.
You bought her clotrimazole? That's medication for a yeast infection, which can happen for lots of reasons, and is also not an STI.
Your wife is pregnant, though, and I understand why you are worried. After you've been off the augmentin for 3 weeks, test for all STIs to be able to put this behind you.