Muscle Spasms in lower abdomen???

I’m 6dpo and my expected period is in 10 days. I am not on BC and for the past two days my uterus is having what is feels and looks like muscle spasms??? I actually see them, i had my IUD taken out the 7th of March. My partner does not “pull out” and I’m just curious if this could be an early sign of pregnancy?? Has anyone else experienced this and actually found out to be pregnant?? SIDE NOTE: my boobs are usually SO tender starting at 13 days before my menstrual cycle and they are not TENDER at ALL. Please help!!