Totally normal. You might skip a month. Then have a longer or shorter period. Then you
might go back to a normal period. You get the picture. This process is important, though,
because your body is learning to settle into a regular menstrual cycle. In a few months, your body should figure out which cycle is best for you. That might mean a period every 20 days, 28 days, 34 days, or something in between. Some girls have irregular periods their whole lives. But if the bleeding doesn�t become more regular, see a doctor, especially if you�re sexually active.