I've had my period for two years now but for the past six months they have been really irregular. Sometimes I miss a whole month, and the usual is about three weeks late? What is wrong with me? (I have never had sex).
What you're describing is a little unusual because periods often start off irregular and develop into a regular pattern. It can help to know what defines 'regular' - because it doesn't mean they have to come exactly a month apart. A period 'cycle' is measured from the first day of a period to the first day of the next period. This can be anywhere from 21 days (3 weeks] to 5 or 6 weeks apart and vary each cycle. However if they come more than 6 weeks apart or less than 3 weeks, and if this pattern continued for more than 6 months, then it's worth having yourself checked out. Periods can become irregular due to hormone fluctuations, if you're on the pill, due to weight loss or weight gain or a change in eating patterns or stress. Your doctor can see you and help work out if it's anything that needs more attention.