First of all--Take pills as the instructions show you.
One a day-at the same time each day. You do not need to take more than one, and you should never stop the cycle.
I used to be on Oral birth control, and when you begin taking it and are in your first month, you will most definately have an irregular period because your body is not used to the hormone. Birth Control will not regulate your period until about the third month. It will definately not regulate it though if you keep taking the pills in such a weird fashion.
Do not worry too much, but do take the pills as instructed. If you stop taking the pills during the middle of your month, you must start over with a new cycle--which means again you have to wait for your period, start taking them then, and then wait two weeks before having intercourse and relying on the B.C.
Take them normally!
Goodluck.