On birth control and no period is this normal?

I just started taking the pills last month and everything was normal but this month I took all my active pills and no period and now I feel sick and I am trowing up and my breast are really sore help?On birth control and no period is this normal?
Your doctor should have told you that your first month, to first 3 months, your period may be delayed, all over the place, or just not come at all. It's all part of your body getting used to having to readjust to the pills telling it what to do. If after 3 months, your period hasn't returned to normal, then you should go to you doctor.