How do I make new friends?

Ever since I got pregnant, I obviously stopped going out and partying. This resulted in me growing apart from my friends because we just don't have as much in common anymore. I still care about them but things aren't the same between us. How do I make new mom friends? I'm so excited for this new journey that I'm about to embark on, I just wish I had some girlfriends to hangout with that have been there or are also pregnant.