My partner just told me...

I'm so upset I feel lied to. He just told me he is possibly sterile after we've been trying for the last 6 months? He just told me about an accident he had. I'm in tears he's lead me on and got my hopes up to be crushed. He keeps telling me they said it's a possibility to have kids but he doesn't know. I guess I'm selfish for even thinking the way I do. I can't stop sobbing