Yesterday I was experiencing this weird fluttering/muscle spasm in my uterus never had that before it wasn't painful at all I had cramps to go along with the fluttering but not strong or painful cramps. I don't think I'm pregnant I took a test a few days ago it was negative. it kind of feels like gas bubbles in my uterus? Any one ever have this before and find out you were pregnant. AF isn't due until 12 more days 🤔