aww, i'm the first in the group too, and my friends are supportive, but just have no idea.
all my guy friends still try and hit on me even though my partner and i are practically married (we refer to each other as husband and wife)
so obviously I don't see them anymore, and my girl buddies still visit, but it's weird when they talk about all their adventures, and I feel I don't have anything interesting to say.
On the upside I love my mother's group and seem to keep making mummy friends.
You'll just need to reach out and embrace your new status in the world. I hope you stumble across some new and better friends soon!