I have been cramping and having lower back pains and the pain has even moved down to my legs when I stand or sit for awhile. I just got off of my period last Wednesday and I was wondering if I'm ovulating early or if I could be experiencing implantation pains. I read somewhere that it's possible to experience cramps with no spotting during implantation. Me and my husband did have sex right before and right after my period so it wouldn't be impossible for implantation, right? Any advice is welcome.