did he cum in me??

Maya

me and my bf we’re having sex about 2 nights ago and after a while he took the condom off and it was dry so he put it in for about 5 seconds and he jerked off until he came on my stomach. what is the chance that i could be pregnant. i also took the bleach and urine test and it was was “positive” but my friend who has not had sex took it got similar results what do i do?????