Heartbreaking news 💔

Me and my boyfriend have been together for about 4 years now and have been having sex for a year and a half. At first I always made him pull out super early because I was terrified of getting pregnant but for the last 8 months he has been cuming inside of me with no hesitation, it's not that I want to get pregnant I just don't mind if I do. So all this time passes and every month like clock work I get my period (which is fine.) so about a month ago he went to the doctor and he's had a few more doctors appointments I was curious to find out why he's been at the doctors so much and come to find out he has testicular cancer. Could this be why I never got pregnant?