I need to know if I am pregnant or not. I had my period on the 14th and had unprotected sex on the 15 and on the 18th. I started spotting brown discharge on the 21st, the 22 it started getting a little red but still brown too, then I kept spotting until today and it got a little heavier and bright red. I have had a few clots, but the blood doesn't look the same as period blood. I was also on birth control while we had sex but it was my first week of the pill and my doctor told me its not effective the first week. I have also had cramps while I have been spotting, not too terribly bad. My stomach has also been bothering me like in a weird way, can't really explain it. My boobs are also starting to hurt on the sides. I have been nauseous every single day, I have been peeing a lot more than usual and I have been constantly hungry but then having no appetite at the same time. I need to know if I'm pregnant or not! Please help!

Any time you have sexual intercourse you risk pregnancy, whether you use protection or not. There is no way for us to tell that you are definitely pregnant or not. You need to wait another couple of weeks and take a pregnancy test.