Can someone help me please? I desperately need my question answered.

so to backtrack a little......period was from 11/16-11/21. normal cycle and flow. last Sunday my husband and i dtd. took a break Monday and Tuesday because I had a pap smear 11/29 (wednesday). didnt have sex Thursday but did on Friday. preseed was used. after we were done i had a lot of brown discharge. I still have it today. anybody know what is going on? I dont have cramps or anything..but I haven't had this before after a pap smear from what i can recall.