Newbie

So I’ve only had sex once and I’m not on birth control yet. I’m going next week. We used a condom and I’m pretty sure everything was fine. We used it the entire time. He pulled out before finishing and nothing was leaking out of the top or the end. Does that mean that the condom didn’t break and I couldn’t have gotten pregnant.? I don’t track my cycle so I really don’t know where I’m at with that. I’m just nervous about it being my first time and I don’t want to be pregnant the first time I have sex