I feel like I have a few BFF's. I have my BFF from college who I see ever few weeks (she's still single/no kids). We have dinner's out and see movies, and actually are taking a weekend trip together in a few weeks.
I have my BFF from high school, who honestly, I rarely see (once a year usually) and rarely talk to, but for Facebook, but I still feel like if I needed to, I could call her and she and I could connect at the drop of a hat (she lives about 5 hours from me).
I have my BFF Mom friend who has 3 kids the same age as mine. We used to be neighbors until I moved. I miss her... but we still get together as families as much as possible, and do girl stuff on occasion.
I also have a few family members that fill the gaps too - I can call my SIL or my husbands cousins wife (totally random, but we connect) if I need someone to chat with.
What I miss is knowing someone in our neighborhood that I connect with to walk to the park with, trade kids with, share baked goods, etc.
I think as a SAHM, we need more than one BF, especially when our lives our in different places than many of our 1) single friends, 2)working friends, 3) college or highschool friends.
Good luck!
Jessica