My periods have been very regular for the past 2 years. But I had unprotected sex during my ovulation window and took plan b 24 hours later. I now got a suuuuuper light period today and its 12 days early which has never happened to me. Usually if I get my period and it’s light at first it will be full blown after a couple hours and it’s been about 8 hours now and it’s still really light. Not sure if it could be the plan b causing this or if it’s implantation bleeding?? Anyone have anything similar happen to them and what was your outcome??