Vasectomy reversal

My partner had a vasectomy reversal a few days ago and we have to wait 2 weeks now before we can do the BD but I'm absolutely petrified of being pregnant! I want to be excited but I just cant! What can I do to help get over this fear! I think it's more the symptoms than the actual pregnancy that scares the living shit out of me due to having 4 previous pregnancies that didn't last