End of birth control pills no interval?

ok im 13 and NOT pregnant but i started birth control pills to regulate my period sunday i be suppose to get my interval for the first month ive taken them but it didnt come . Why is this? also ive had my run of the mill "signs" of getting it. Can i get it at anytime during the day or would it be an over hours of darkness thing?
Answers:

Frds, i deliver in sept 2006, immediately also i still feel muscular throbbing in my hand. do i have to live beside it now

It can take up to 3 months to regulate your interval from using Birth Control pills. Keep taking the pill (if you know your not pregnant). If after 3 months you still are not regular, contact your physician. This pill may be to strong, and you may need to try another.
..You time can come at anytime of the day.

I pilfer Birth Control to regulate my period (Mine is to heavy). It have taken 3 months, but now works great for me.

What foods affect your menstrual cycle contained by a good/bad way?

thats because birth control stops your term because when you have a time, you can get pregnant. taking birth control will not assist you regulate...your body does that on its own. you shouldn't be taking birth control right now because your still childish and that can cause problems. you can gain it anytime and anyway so keep an eye out.

About Sex?

It take a few pill packs to gain regulated so don't worry.