Usually 5 to 7 days.
your menstrual cycle will last about 7 days
Typically a dog's period cycle will last for 21 days.
BTW... i dont have your answer but its 28 days not 20! ;)
What type of cycle are you talking about?
Yes, your menstrual cycle can last only two days. Menstrual cycles can range from between two to seven days. Some factors that affect cycle include stress, exercise, and age.
3 to 5 days
it can last up to a whole week
your menstrual cycle will last about 7 days
The estrous cycle of pigs is 21 days. Humans have a menstrual cycle which can last from 21-35 days.
July6
The average menstrual cycle last 28 days. The first day of the menstrual cycle is the first day of menstruation. About one fourth of the whole cycle is menstruation.
The first day of your current menstrual cycle (the first day you begin to bleed again) is also your last day of your previous cycle. The average length of the cycle is 28 days. The first day of your current menstrual cycle (the first day you begin to bleed again) is also your last day of your previous cycle. The average length of the cycle is 28 days.