Scared for a minute..

Me and 2 of my little ones where grocery shopping and all morning I've been having BH contractions. While we were at the store I literally got stopped in my tracks amd thought I was having the real deal holyfield. With all 5 of my kiddos all my contractions are in my butt and lower back and my BH are always just tightening of my belly. But that one in the store was in my butt! I am at home now relaxing and they've stopped. Maybe I've just done to much today. Has anyone of you ladies experienced this?