I had sex for about eight days unprotected and multiple times a day. My boyfriend finished in me each time. I am on birth control and my period came the next week after but I was feeling sick the whole time and I've never had that before also I've been urinating very frequently lately ? Help?

Your are probably fine. The fact that you got your period means that your body is still trying to reproduce which your suppressing with birth control. As for feeling sick could just be a stomach bug or something like that but your partner could have had a bacteial infection that transferred to you. Usually thatd be itching and maybe some fever if the infection persisted. If I was you id go to the doctor if you keep feeling sick but more than likely your fine and I'm 98% sure that if you got your period after unprotected sex your not pregnant but there is always that small percentage that have their flow wven while pregnant. Its not the same thing and its usually spotting only.