I had my last period on 24 th may to 29 may, I had a protected sex on 10 th day of my period but ro be on the safer side I took unwanted 72 after one day, I bled after 21 days for 3 days, and it was on my expected period time, so was that my usual period, cause usually my period is for 5 days so I am little scared, I did a home pregnancy test after 20 days of taking pill and it came negative so please tell me am. I pregnant?