Cycle Day 86 😩😒

Okay Sooo I'm Really Confused At This Point. I'm About 18 And Ive Gone To The Clinic 3 Times In The Last Couple Of Months 😒 Every Time No pregnancy. They All Told Me To Wait 3 Months To See If My Period Comes And Go See A Real Doctor But My Appointment Wouldn't Be Until Weeks From Now Soo Now The Last Past 4 Weeks Ive Had Super Sore Breasts And So I Thought It Was Me Ovulating Or pregnancy But I've Took 8 Home Test All Negative. Then My Sore Breasts Stopped A Couple Days Still No Period THEN Sore Breasts Again. Absolutely No Spotting Or Anything. I Dont Know What Is Going On. Last Period Was July 8th. I Really Need Advice Idk What To Do I'm Super Stressed 😩