Sore bum?!

Ashley
I'm 6 weeks, 4 days. For several days now it feels like I've done a ton of squats. It hurts on the upper part of both my cheeks (sorry, lol). It just feels extremely sore. I haven't done anything to make that happen! I've read that quite a few women have experienced that. Do any of you have that and/or know what causes it?!