Please tell me why is my period late and what should I do?

Besides pregnancy, it could be hormonal. Get some medical advice so you can set things straight, don’t let it drag out like that!

Whether your pregnant or not, you should go see a doctor. Some people have irregular cycles but that usually means something isn’t right. Only a doctor can tell you. If your pregnant than I’m sure you already know that it is a possibility and no one can help you but your ob.

Talk to your mother.

Here’s some recent info from the website Go Ask Alice!

It is very common for your period to be irregular for the first few years after menarche.

@nikipedia is 100% correct. Barring the posibility of pregnancy (which you failed to mention as a possibility so I’m assuming you are not sexually active), hormonal maturation is a process and by no means consistent or pleasant. It will sometimes take a while for your body to figure itself out..

also this happens because girls have cooties

Weight loss can also be a factor, if your weight’s dropped below 100 lbs.

Cyclical irregularities are quite common but there often is a cause. I wouldn’t worry too much until you’ve seen a doctor. I wish you the best.

Get a life