I had unprotected sex on August 26th, and according to my tracker this was around the time that I would've been ovulating (my next period was supposed to come on September 9th). I took Plan B just in case anyway less than 12 hours after the intercourse. On the 1st of September, I bled for about 2 days- enough to fill up pads. It's now been almost a month after the intercourse and I have yet to get my period. Was that bleeding my period? If I were to take a pregnancy test now, would that test be accurate?