Hello, I am on birth control, I had sex May 27 then got my period on June 1st, it was regular & on time. I had a pap biopsy on June 13 and bled from that from the 13th-24th. I was on vacation during this time and forgot to take my birth control at exact times but did take it as soon as I remembered. I then had sex on July 1, he pulled out. I got my period on time July 6 but it was a little shorter than usual.