Your period isn't 'early' it's just earlier than you predicted - you predict when your period is due based on an average from your past cycles, but cycles change all the time so this isn't completely accurate. Anything up to a weeks variation from your average menstrual cycle is considered perfectly normal.
More than likely, yes. Each women's period is different.
A normal period can be 3-7 days long.
Yes, a normal period can last from 3 to 8 days.
yes completely normal. A periods can last anywhere from 3 to 9 days.
Yes
It's normal to have period twice a month heavily just for 3 days only?
It is normal to have variations and healthy. If in doubt go to a health center or get a test kit.
Had my normal period dec 6th thru the 10th had sex on the 11th again on the 15th started light bleeding on the 20th for 3 days .
What? No. First of all, you got your period. Period = not pregnant. Secondly, if youre 3 days early, that's completely normal. Your cycle will fluctuate. Are you planning by month, or by every 28 days? Plus, its very normal to not be EXACT every month. Three days is nothing to worry about hun.
I have before my period, I start my period for 3 days then My period was stop after my period for 3 days, I want to know what happened to me?
yeah that's normal
More than likely if you are young/in your teens, then it is normal for things like this to happen as your body is continuously changing and has to get used to a normal pattern of menstruation.