Should I be really worried

Is there anyone that has had sex with a condom and the pull out method of the first month/few days of using birth control pills? Not not gotten pregnant. I've been using birth control pills for about 2 1/2 weeks and have had sex within the first 2 weeks with a condom and the pull out method I'm just paranoid. I know I should wait the whole month but I didn't. I would just like to know if anyone has had protected sex with using first weeks of pills and not gotten pregnant.