[Dark-and-Twisty]

It's normal to be irregular for the first couple years. Your period might not come at the same time every month, and you might skip a period altogether. Even years later, your flow might vary. I've had my period for 11 years and sometimes I'll be a week late or a few days early. Some months it will be heavier than others. Usually, for me at least, it starts out really light the first day, then days two, three, and four are heavier, then the last day is lighter.