Heavy implantation?

Victoria
On Friday I was heavy bleeding that I thought was AF coming, even though it was a week early. Yesterday it lightened up ALOT and today there's nothing. My periods are always 5 days and I get cramps constantly on them. I haven't had a single cramp these past couple days. Has anyone experienced this before? I've been googling and seen some post but no one has responded to them. Please help!