Periods can be anywhere from 28 days to 40 days apart. Your period is your uterus clearing the space so you can have a baby.
yess
If you are sexually active then you could be pregnant but if not then you could just having a late or irregular period.
A woman can get pregnant before, during and after her period.
No foods can be used to start a late period. Your period will arrive when it is ready. Unfortunately you cannot force these things. However, if sexually active, perform a pregnancy test.
edit* your - my period time*
What if you are three days late for your period? It's normal for there to be around 7 days variation from your average menstrual cycle. A few days 'late' isn't a big deal, as long as you're not sexually active no reason for you to worry about it.
If your periods are irregular anyway then there is no way to tell, I advise you to see whether you have a period next month, if not then go and see a doctor for a pregnancy test. If you have only recently become sexually active then you should be using protection anyway.
Up to a weeks variation from your average menstrual cycle is normal. If your period is late then it may simply be a result of stress or ill-health, the odd late period is nothing to worry about. If you're sexually active then take a pregnancy test as this is a possibility.
Could you possibly have an ovarian cyst? A study I read recently attributes irregular cycles to ovarian cysts. Stress from a late cycle will also cause your cycle to be late.
yes. if you are active as in sports or working out you will be late do to the physical activity.
also, i am afraid that ive been exercising too much and that the exercise is the cause
It depends entirely on the individual ! Puberty in girls can happen as young as 8 or 9 years old - or as late as 20. As for being 'sexually active' that is solely the responsibility of the girl.