Has anyone ever experienced cramping like AF for implantation? Af isn't she for another two weeks, but for a few hours…

Has anyone ever experienced cramping like AF for implantation? Af isn't she for another two weeks, but for a few hours it almost felt like I was getting her. The cramping and back pain was real. Now I'm good. Just curious if maybe someone has experienced this. Still have to wait two weeks to see what's going on. :3 Thanks ladies.