i recently had a short altercation with a male on the 11 of january, he inserted his penis with out a condom for about a minuet. there was no movement of such or any sexual activites. he just inserted then came back out as i wished not to continue with the process. is it possible i could have contracted hiv ?im really worried i could just be assuming but im scared .how soon could i get tested for this? do i have to wait 3 months.