Antibotic and TTC?

1st off, I will call my dr but she is out for a week and I am driving myself crazy wondering if I will have to sit out this month :(

I'm on metronidazole for a BV, and will be done with it the day before my peak ovulation. Im not supposed to have sex the 7 days I'm on it. If (obviously huge, big fat if) I were to concieve the day or two after I finish the medication could that affect the pregnancy or would-be baby?