when you should get a period
You should get your period once every month. Your menstrual cycle should be about 28 days. This means that there should be about 28 days from the first day of your period to the first day of your next period.28 days is an average number, but anywhere between 21 and 35 days is normal.Your period will usually last between 3 and 7 days. The amount of blood flow you have will probably be different each day.his means that there should be about 28 days from the first day of your period to the first day of your next period. 28 days is an average number, but anywhere between 21 and 35 days is normal. Your period will usually last between 3 and 7 days.