Here is the situation.

I had sex almost a month ago with my boyfriend. He used a condom but he didn’t go off. He had been drinking so that affected it. After the condom was off, I made sure there were no holes by putting water in it. It was good. I’m not on birth control but like I said, he didn’t go in the condom (or ever) that night. I’m late for my period though. Could this be due to me starting a new and stressful job last month? Or??