why is my menses late for about 7 days?

Question

i'm 17 years old. My last period was on 24 oct. So my next period should be on 21 nov. But until now it hasn't come yet. I do not have sex during 24 of oct until now. But why was it late?
i get up from bed in irregular time, sometimes 7am, sometimes 8am, sometimes 10am and even 11+am. Would irregular wake up time will cause the menses to come late?

Answer 1

Don't worry, it could be just some kind of added stress on you with school, sports, etc.

It happens, especially when you're younger like you are.

Answer 2

you are probably still growing and alot of women don't have regular periods. it may seem regular for a while then change, or just be sporatic. i'm 21, had it for 9 years and it has never been regular, some people just aren't. also, stress, too much physical activity (exercise) and poor eating habits can cause it to mess up

Answer 3

Don't panic, it just happens sometimes. If it gets to be really late, say, two or two and half weeks see a doc to find out why.