Fertile or not??

I had my period on May 3rd & stopped May 8th I started feeling really sick on the 10th while at work when I went to the bathroom I was bleeding again color was very bright kind of heavy I wasn't bleeding by this morning but after me and my SO had intercourse I am now bleeding again and not just spotting there was a little clot in the toilet like I was back on my period by fertile window is supposed to start tomorrow am I still fertile??