so I'm going to be one of those annoying people...

Amy
I have pcos. Usually it makes me bleed 24/7. Unless I become pregnant. 
I became pregnant with my son and my bleeding stopped. 
Last month I started spotting and then bleeding on the first and it lasted till just a couple days ago. At first I was freaking because I was bleeding all the time. I still had sex, and the 28th was the last time I had sex. 
Now my period has stopped. And I had an endometrial biopsy on the 7th. 
Is there a chance I could be pregnant? Even with the biopsy??
I don't know when I ovulate.