Okay so I'm not on any form of birth control but everytime I have sex we use a condom and the pull out method. About 2 weeks ago my period finally ended (or I guess it was my period) after the 3 weeks. And I haven't had it since but this app is telling me I should have it in 2 days. I haven't had any symptoms or anything, should I be worried? I took a plan B about a month ago because the condom broke. Would that have anything to do with it?