Brown discharge???

Tamara

So I finished my period about 2 weeks ago. My boyfriend and I have had sex in the last week but he said he couldn’t finish. But all of a sudden today when I go to wipe the lady parts I see brown discharge on the toilet paper. The bf and I use both birth control and condoms every single time and I am very strict about making sure that I take my pills on time. So I’m confused and I don’t know what this means. If it happens over the next few days I’m gonna call the doctor. But I’m scared something could be wrong. I don’t want to be pregnant at my age because I can’t afford it. Has this ever happened to anyone else????