Hi. My Boyfriend And I Did Some Dry Humping 5

Hi. My boyfriend and I did some dry humping 5 times last December 17 up to the 19th. He was wearing a basketball short and a boxer shorts while I was wearing a pajama and a panty. At some time his penis was out of his shorts and was pushing through my underwear covered vagina. He ejaculated all throughout the 5 times but he would warn me that he's about to ejaculate and we would got off as soon as possible. He at some point ejaculated on my stomach and chest. Could this mean that I could still get pregnant after what we did? Please help! :(