george, do you have any friends with children? I'm quite lucky that my SIL is having a baby in Spetember and my bf has just had a baby too so I'll have lots of people around me.
I still intend to try and join a mother and baby group or something though. I didn't keep in touch with anyone from antenatal last time round but I'm hoping to make some friends at my refresher courses.
You could always try finding some MN'ers local to you on other antenatal threads. I know the old June thread had lots of meet-ups which turned out to be a fab idea.