What could be the cause of a late menstrual cycle (2-3 weeks late) ?!
Question:
What could be the cause of a late menstrual cycle (2-3 weeks late) ?
... for a twenty year old who is not currently sexually active?
Answers:
anything from stress to diet change to the changing weather. don't worry about it - this happens all the time - the stupidest things can throw off your cycle.