Dull cramps and back pain

Not sure if i’m experiencing contractions as I have a high pain tolerance. I am getting them frequently enough to notice they stop and start again. It feels like menstrual like cramping, dull and in my back and moving to my front. Not BH contractions. Also, these do not affect my stomach whatsoever.

I have been bouncing on my YOGA BALL sooo much lately trying to move my baby down and get this show on the road as my dr said he is ready to come whenever. 36 + 5 today.

Are these contractions and should I time them? Or they’re just “practice” contractions? Thanks for all input ❤️