Sharp stabbing pinching pain tww?

*Dimple* • TTC #1 for 4.5 years. Diagnosed with endometriosis 12/28/15. Conceived naturally October 2017
So since around 11 DPO to today 13 DPO I have had wierd pinches. It's almost as if someone is pinching me from the inside. It's at the top of my uterus each time. It's almost as if something is hitting a nerve. They are fast sharp pinch like feelings that come and go. I am not saying it's a baby or implantation but it's wierd. I don't think I have gotten anything like that before. I don't want to get my hopes up!