Hi, I asked a few days ago about a Emergency contraceptive pill. I took plan b on May 31 and my period was supposed to start on June 17 but im late. I've taken a few pregnancy test. Last one was yesterday and it was negative. I took a blood test on jun 14 also negative. When i took the pill i had a very ligh bleeding a week later (june 5) , do i have to count since that day for my next period?