I, for instance, tried to join a group but was only one of two to show up and even then, the other lady didn't speak English and lived across town. Luckily, I was fortunate to have many friends having babies at the same time and didn't need a secondary resource. A friend of mine recently laughed her way out of a session and was asked not to return. I think she may have been booted for fitting into her snug white prepregnancy jeans just a tad too soon for their liking.
Did you find solace in a mom's group?