I been having a discharge for about a month now no STD's No tricamonus no nothing no yeast no bacteria no nothing but why am I having a discharge I've tried pH balance soap

Some discharge is normal, especially in young women who's hormones are still fluctuating a lot. Don't use a lot of soaps and stuff because it won't stop the discharge and could cause an imbalance of healthy bacteria and Ph which can cause infections. If you have an odor issue it is likely an infection.

But I've been tested already nothings there

Okay, you have been tested. Women need discharge. Discharge is perfectly normal in absence of infection.

Even when after sexual intercourse the smell gets stronger to where if u wer having sex n u smell it u couldn't finish cause it smells

Sex causing odors can be Bacterial Vaginosis. Have you been tested for that?

Yes but they said they didn't see anything