Good luck, Fachowna. I totally feel your pain. I recommend staying for the minimum amount of time, and while you're there, seek out those people who know where you stand. If you get stuck talking to anyone else, come with a list of topics of conversation that AREN'T kid-focused. It's amazing how you can steer a conversation if you're prepared to do so.
I actually feel sorry for all those moms that have nothing to talk about except their kids. What a sad existence.
Our work rotates events... we have a picnic for the "families" but we also organize happy hours for the rest of us who actually like to have a good time!
Let us know how it goes!