Am i pregnant? I have no symptoms...

I think you are freaking out a bit I heard that the morning after pill causes heavy periods and bad cramps!!!the more you stress the slower it will take for your menstrual cycle to get back on track....just chill out and let nature take its course...good luck hun x x

should i worry about being pregnant?

It sounds like you are just being too worried. It's okay I worry too much too! It's odd how we put so much trust in such tiny pills huh? But honestly, if you take your pills regularly and don't miss any the chances of pregnancy are slim. Plus you took Plan B, which works a lot like birth control pills in the sense that it stops you from ovulating. As long as you followed the instructions for Plan B properly and as long as you did not throw up while taking it, you should be fine. Also the only thing that could cause you to be pregnant on the pill is if you were taking antibotics or threw up while on the pill because that make it way less effective. It sounds like you skipped a period? That could be from taking the Plan B or from stressing too much. If your truly not convinced, buy a home pregnancy test or go to the doctor for a blood test. Menstral symptoms and pregnancy symptoms are a lot alike. Trust me, I've had plently of scares myself and have been fine! Try taking a hot bath to help relax and your period will come soon enough! Good luck!