Should I be worried?

I'm a man waiting for marriage, and I have also never masturbated before. I've never felt that need before. Does this mean that when I lose my virginity that I should wear a condom (within marriage) because I don't want to have kids immediately. I'm not sure if this means I will ejaculate immediately, or if I will last longer. Wasn't sure who to ask, and this is obviously a burner account.