Is there a chance I could really be pregnant

Hi girls,

So I started taking birth control but I guess I wasn't taking it currently until now when I just found out..... witch I feel really stuipd for because it won't protect me from nothing if I don't use them right lol well I started taking then in November and then in December I literally had a period for the whole month like 4 days kinda heavy but not really and then the rest of the month was very light spotting of brownish dark discharge and then in January I haven't had nothing at all.... no period but a lot of discharge!!! & in all those months my bf and I have been have unprotected sex a lot and he comes in me almost everytime.. but here's the thing I think I mint be pregnant but then again I don't because before I wasn't taking no protection at all and he came in me when I was ovulating and I never got pregnant and that happened a couple times so like what r the chances now right that's how I see it.. but please tell me what u girls think it means a lot and would help me alot also