Hi guys so, I’ve been cramping for the past 2 days with lower abdominal cramps and lower back. I’ve been having some mild cramping after ovulation. I’m supposed to start in 10 days according to my Flo app. I took another pregnancy test this AM and I’m 8DPO according to my positive OPK. It was negative. I feel like I saw something but you know how the mind gets during testing! Could this be pms or implantation?