Well. The other day me and my boyfriend were messing around and there was genital contact but no penetration or ejaculation but possible precum. This was Sunday evening and the last time he had ejaculated was Friday morning. I heard that precum does not contain Sperm unless it's picked up on the way out but I am still nervous. I bought plan b and took it 25 hours later. My period is due in a week now. Should I be worried or am I freaking out for no reason?