You should join a MOMS Club. I'm an officer in Chandler. I joined a year ago and then decided to make a difference in regards to doing activities I want to do with my son and the friends' opinions made into fun get togethers. So, depending on your boundaries, you can join one. There is a program in each one that helps - Hospitality/Meal Support and Babysitting Coop - in which you join, get 10 pts = 10 hrs of free babysitting from any member that decides to be in the babysitting coop, and then when you have a baby,you get 1 pt from each member as a gift. There's a coordinator for both and it doesnt' have to be to help with your future baby, it can be to help any mom that needs the help.
They were great for me when I had a miscarriage in late April this year which was caused by added stress from finding out my son had autism.
If it wasnt' for them, I'd be seriously depressed. My friends/old co-workers, I haven't seen since I moved back, they only want to get together if I can drink cocktails..which I'm allergic to alcohol, I'm not into clubbing anymore, and they have kids either 4th grade thru high school or they just became grandmas themselves and don't have the time.
I also don't have family here, and even when they were around, they couldnt' be depended on, (which was in Calif), and my in-laws live in North Scottsdale and North Peoria and either case, there is no way I can depend on them for help either.
And although, I say to join a moms club for support, that's up to you. Because, regardless, if I have their help or not, I still need a backup babysitter(s), because I realize that they're not always available during their own kids naptime and that's typically when I make my appts or when my husband and I want to go out on a date night on the weekend..practically no one is available.
Anyway, good luck!