Implantation cramps?

Katelynn β€’ Proud mommy of a little boy and an angel! πŸ‘¦πŸ½πŸ˜‡ TTC for our third since February 2016! πŸ‘¨β€πŸ‘©β€πŸ‘§β€πŸ‘¦πŸ’•
Has anyone ever had some strong implantation cramps instead of very mild ones? I think I am spotting, but my cramps aren't mild. They are fairly strong. I just don't know what to think anymore.