Hi ladies, so I have a 21 day cycle. It's usually never irregular, but sometimes it does happen. Anyway I started my period on may 10 and ended on may 13. I was ovulating on the 14th of may and I had sex on the 14th and the 16th. Well three days ago I started spotting, I only see pink when I wipe, it's been going on for three days, not very light, mild cramping and I have been very nauseous. I start my period in 8 days. I was just wondering if this could possibly be implantation bleeding. Please give me your opinions, thanks!💕