Hello, I am 20 years old and have had unprotected sex with one partner I was dating. After losing my virginity to this man, I have had about three UTIs and sometimes pain against my cervix during sex. After the Urinary Tract Infections I noticed a change in my discharge. It became thicker and had a light sour smell and taste. It has been about 5 months since Ive had sex and I went to get a pap smear about 2 months ago. The results came back that I didn't have any STDs, but I have HPV. I don't remember the strand. Since then, I have noticed small bumps (different from hair bumps) around my pubic hair and on my upper thighs. My discharge now has a very foul smell (fishy) and has changed from yellow to green to light brown. I have been wearing a tampon to minimize smell. I should be getting my period in about a week. I am very scared and need answers. I have only had one sexual partner.

Only a test can tell you, but it sounds like it might be trich.
Trichomoniasis (http://www.webmd.com/sexual-conditions/guide/trichomoniasis#1)

Partners can get it too, without discharge, so they need to be treated too. Treatment involves both partners taking one large dose of a certain oral antibiotic.

Don't let any man whine about lack of sensation with a condom. Demand them.

I agree with Joy on this. Aside from trich, the fishy smell is indicative of bacterial vaginosis (BV).