Hi, my name is Alex and I was wondering why am I having two periods this month...me and my husband had sex on May 3,5,6 and I started my period on May 8th and ended May 12th, we had sex again May 13, 14 and I took a plan b pill May 15th, we had sex again on May 16th & 19th..then I started what it seemed like a period this past Wednesday, May 20th and I m still bleeding.