I got tested for std like chlamydia and gonerrea and came back negative. but i had sex again and he is all im burning when i pee. could he have it?

Probable STD: The gonorrhea and chlamydia tests aren't perfect, so it's possible you're infected and your partner now has it. Other STDs also could do this, such as trichomonas, herpes, and others. Both of you need to be professionally evaluated ASAP. The Seattle Public Health STD clinic (at Harborview) is among the best in the country. Call or go there. (I'm the former clinic director. Tell them I said hello.)