Me and my boyfriend had sex the day after my period ended. I'm usually good about taking my birth control pills every day and I missed one during the third week of the pack, I took it as soon as I remembered the next day with that days pill. I've been on birth control for over a year. He didn't ejaculate but he did penetrate for about 5 minutes. I went and bought plan b just to put my mind at ease. Is there a possibility or am I just being super paranoid!!! Thank you so much!