Things change when you get pregnant?

Damn I was really hoping that I wouldn’t be someone who had people flake on them once they got pregnant. But so far my relationships have really changed with people closest to me. So far, I don’t really have a relationship with my mom now. We used to be extremely close and I would tell her everything, but she became extremely radical before my pregnancy and then started doing things I never imagined she could do to me and my brother once I got pregnant. Now I can’t even send her anything or tell her updates out of fear and I don’t want to get close anymore either. It seriously sucks. Then my best friend of 6 years (who can’t have kids but also says she doesn’t want them) is acting weird and I feel she’s backing away. The last time we hung out her behavior was really unlike the girl I’ve known and loved and I sent her photos of my anatomy scan today and she hasn’t even replied or anything. Anyone else’s relationships totally changed once they got pregnant? I’m glad I still have people who care about me though, I just never ever thought these two closest people could be so far away now at such a crucial (and amazing) time in my life.