Condom AND Pull Out?

Im 20 yr old college student, still a virgin, and I have been dating my current bf for about 6 months.

He's absolutely wonderful & respects my decision to wait till whenever I'm ready.

WELL I'm ready😛 but Im extremely paranoid about becoming pregnant.

I won't take birth control or iuds due to their long term side effects.

We have agreed to not having sex every day but more than occasionally of course. (At this point in our lives)

Are both condoms AND pull out reliable? Does anyone else do this?