How can you start your period early?
You usually can't control your period but you can keep a calander or keep track of it and try to guess about every 28 days for 5 days. If it's the first year there most likely won't be a pattern. If you need to start it early, google 'vitamin C period'. If you need to delay your period, you'll need to talk to your doctor about Norethisterone.
If you mean start early as in--the first time you've ever had a period, not that I know of. If I'm not mistaken, early onset menstruation is hormone related. Could be genetics as well. If you mean start early as in--your period came at eg: 22 days instead of the usual 28 days, then yes. Stress can also make your period come late (like 32 days or so) or not have it that month at…
You can't help to start your menstrual period, it will only start when it is due to start. Your menstrual period is controlled by your menstrual cycle, a domino affect of hormonal changes within your reproductive organs, you can't skip phases of your cycle or speed it up to start menstruation early.
Generally, no. It takes the proper hormones to have this happen and the normal period cycle is 28 days. You can not force this to happen ( say for instance you are going on a trip and want it early). There is also the possiblity you counted the number of days wrong between cycles. You start on the first day of your period as day 1 until the next period.
Your period is never early or late, it arrives exactly when it is due to do so. If your period is 'always early' then it simply means that you're predicting it to start at the wrong time - figure out your average cycle length from your past six cycles, as long as your period falls within a week of this it's considered normal. Remember that cycles always change.