I had unprotected sex on 8th Oct. My period date was on 28th but period didn't come. Earlier Ihad consulted a gynecologist who prescribed m meprate for 3 days .I had bleeding around 14th but scanty flow dark brown in color for 2 days. I did a self urine pregnancy test on 25th which came out to b negative. Is there still any chances of pregnancy. Was it implantation bleeding? Nd I had taken meprate 2-3 days before I had unprotected sex with my partner. I am very tensed. please guide m.