I am 21, sexually active, and on the birth control loloesgrin so I rarely get my period. About 4 days ago I had sex and next day my vagina was swollen, the day after that it was itchy with white discharge (I ve had a yeast infection before so I was not worried) but today and yesterday it has continued to be a little itchy, swollen and now a dark brown discharge/liquid is constanty coming out but it doesn t smell at all or anything and it does not hurt to pee, I realllllyyyy do not want to go to the doctor unless this sounds very serious so I was just wondering what this could possibly be?