Confused.

midãhvïd

Hey guys. I've noticed changes in my period for like two months now. I'll bleed for 3 days spot for like two days the spotting is pure blood its just not enough to fill a pad and it recently just started normally all bleeding stops at 3days. I know EWCM can come anytime but personally it comes in excess during my ovulation week and before my period like about two days and its mostly thick and real jello like but now I'm in my ovulation week but its not thick as usual its very light in texture and not much. I've been on a shit load of antibiotics treating staphylococcus bacteria infection (UTI) but its resistant to almost everything and it refuses to go(I treat based of urine MCs) my lower back really hurts and I have vagina pain I did a high vaginal swab test and I don't have any bv or any other bacteria and the pelvic exam I did the doc said one of my batholin in my vagina is swollen. I'm tired of drugs. What do you think is going on with the discharge? And the UTI? I have an appointment with my OB in like a week. What's your opinion on what's causing changes in the period? Am I safe?