Technically, there is no time "between" cycles - one starts as soon as the previous one ends. But 28 days is the average cycle length, however, even a full week longer or shorter is totally normal, especially if you are young.
28 days.
Five days after menustrial cycle
3 to 5 days
sach bole to 3 to 5 days
Typically a dog's period cycle will last for 21 days.
4
29.5 days
Usually 5 to 7 days.
27.531 days, on the average.
It takes about 30 days on average
28 days
The egg is available 1-2 days a month.