I had unprotected sex with my boyfriend this morning and he came inside me. I'm on my period right now and tomorrow is the last day. I was just wondering if i should take the plan B or not.? I feel like I should because i don't want to any risk as I have heard of people who got pregnant while on their period tho chances are slim. Pls has this happened to anyone before? Another reason I am contemplating taking it is because I don't know how it's going to affect my cycle if it's going to make my period Longer or something. what do you guys think I should do? I would really appreciate your comments thanks.