Period Help?

I took an iPill on the 5th of July and my withdrawal period came on the 10th of July. I’ve since been bleeding for 15 days. During this time my period kept getting heavier so I decided to put on my EvraPatch on the 17th in order to try and stop it. But since then it has only gotten lighter & doesn’t seem to be stopping. I also had sex yesterday and the person came inside of me. Is there any chance of me getting pregnant? & what should I do about my period?