Butt cheek pain - anyone else?

Emily

When I lay on my sides.. right or left. After sometimes 30 mins, sometimes hours I get terrible pains in my butt cheeks on the side I was laying on. Switching to the other side stops the pain immediately, but it’s a little annoying! I have to alternate sides multiple times throughout the night. Curious is this is happening to anyone else?

I am 30 weeks!