Thurs night i borrowed my friends bikini to go in the pool for a few hours. i realized after the fact that i could possibly catch an std, hiv, herpes or something. i went for testing sat afternoon. can i get something from her bikini &test to early?

Transmission: I do understand your concern & the question is broad. STD (sexually-transmitted disease) is transmitted sexually if one neglects to use proper barrier protection ie. latex condom. If there were no sexual contact, no skin lacerations and the bikini was clean, the answer is unlikely you contracted STD. "Something else" another disease (not STD) is possible. Tests were too early for certain STD.