Feeling contractions in your butt?!

Rachel
Weird question, I know, but I think I may be having contractions. Crazy thing is, I ONLY feel them in my butt. 😂 My stomach is pretty much hard all the time so I don't notice that very much and I'm not having a lot of cramping. Just curious is anyone else experienced this. They aren't super painful just yet, but are coming pretty consistently.