so about 17 days ago my boyfriend and i were fooling around. we were dry humping and we both had underwear on, however his penis might have come out of his underwear at one point but my underwear was still between us. he never ejaculated but I know there is a possibility of pre ***. is there anyway that i could be pregnant from this? my period has been very irregular the past few months so I'm really not sure when it's due but say i was ovulating during the time we did that, is it possible?