Feeling antisocial while TTC

So I'm not trying to be a terrible friend. We have some friends who live up the street and we haven't seen them in over a month so we're overdue for a visit but whenever we get together it's a big boozy hangout. I'm not pregnant but I'm not drinking because my ovulation window is coming up and we'll be ovulation testing and trying to have sex every other day. I just wonder if anybody else feels like they want to completely avoid get togethers that involve alcohol when you're TTC and having trouble? I could go and not drink but I feel like a wet blanket (and the woman drank while TTC so she's a bit of a pusher). Is this normal? Or am I being antisocial? How do I avoid everyone until I'm pregnant? Lol!