HELPP I NEED PEACE OF MIND

so I just started dating this guy and he knows I'm a virgin. I didn't have any underwear on and I was on top of him rubbing myself on his shaft but he NEVER entered me. I was off him when he ejaculated and he did it on his stomach.... The cum dried pretty quickly and I got back on him but with underwear on and rubbed against him again and I was off him when he cummed again.... God this is so irrational but I'm freaking out about the possibility that I could have gotten some cum on my lady bits and I could get pregnant from pre cum. Thoughts?