Sex the Day Before And the Day After Period

I had been seeing this guy for a good minute and we had sex the day before my period. My period lasts approximately. 5 days on the sixth day we had sex again only this time when he entered me it felt like I was a virgin again (it hurt) he wasn't wearing a condom and the first time he came he pulled out within a second of him coming the second time when he pulled out we noticed that I was bleeding. This week I noticed a light brownish liquid like discharge coming from me. The very first time I thought he came in me so I took the day after pill. Also since we first had sex I have been sleeping alot more. Could there be a possibility of me being pregnant?