preg??

im 16. me and my recent boyfriend just broke up. although, about a month ago, we had sex without protection. (sorry if this is TMI), but when he finished, he pulled out, then right after, he went back in. didnt clean off or anything. i dont know if thats still possible to get pregnant from. according to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a>, im currently 2 days late. i went to the hospital with what i thought was gallbladder issues and they asked if i had any chance of being pregnant but my grandma was in the room so of course i said no. they did a urine test like all doctors do for everything . if they werent looking for pregnancy, could it have been not looked at and missed?? im really scared that im pregnant. im only super paranoid because he went back in RIGHT after he finished. whats the chance of me being preg??