Might be dumb questions?

These might be dumb questions but my husband and I are trying to conceive #2 and I believe I should ovulate next weekend around 8/5. My questions are I have my yearly OB/gyn appt on 8/10 and a wedding on 8/12. If I do conceive could the yearly exam mess anything up? And should I avoid having any drinks at the wedding? Again I know it may be silly to ask I just want to keep my chances up!