Last time I took plan b was about 11 months ago and I had the side effects I believe the next day. Only lower abdomen pain pretty much. Y yesterday I took it because my boyfriend wanted sex (I didn't want to because we didn't have protection and I'm not on bc) so he just basically placed it in for a little. About 2 min or less in total but obviously didn't cum inside. I'm really paranoid about pregnancy so I took plan b after 19 hours of that. I was not on my fertile window because I'm really irregular but I was close, it actually starts tomorrow. I'm just wondering... do you have to have the side effects to know it worked or if you don't get any side effects were you pregnant already and it didn't work? I think I'm not pregnant but I just want to make sure if anyone got pregnant with plan b and didnt get the side effects.