Chances of pregnancy

So I had sex w my bf last week. We used a condom and he pulled out. I dont think the condom broke. I have been on the pill for about 4 years and haven’t missed one. Sometimes I take it a couple hours late but always take it. The night we had sex I was supposed to take my pill at 9pm but took it at 11:30pm. I am due for my period in a week and am experiencing brown random discharge, sore nipples but my breast don’t hurt and cramping. Can I be pregnant?