My last period was April 1. I had protected sex on April 14. On Friday night (April 18) around 10pm, I had unprotected sex for a few minutes and then we used a condom. The next night (April 19) we did the same thing around the same time. He said he couldn t finish that night. The next day (April 20) I decided to take Next Choice One Dose around 7pm just to be safe. I have not had any side effects, which is good. My next period is scheduled for April 29th, according to my period tracker app. I have read EC pills can cause your period to come later than usual. I am just worried it won t work. This is my first time using EC pills. I have read good reviews about Next Choice and I am trying to relax.