Thread: 3 weeks late.. :s

Hiya, recently my period was more than 3 weeks late, and when it did finally start it was very light and only lasted three days. I'm 19 years old and usually irregular.. varying up to a week early or late, but has never been this late before and I haven't at all been stressed. Should I mention this to my doctor? Thanks

id wait and see what happens next month as it could just be a one off...if its the same as this time then it might be worth mentioning