The first menstruation can be as young as 9. In the US the average age for girls to start menstruating is 12.
Any time after the first heat (menstrual) cycle is safe to breed your dog.
The menstrual cycle is the reproductive cycle, as long as she is fertile she is always on her menstrual cycle. You can't tell where she is in her menstrual cycle unless she tells you.
The menstrual cycle is the reproductive cycle of a woman, while she is of reproductive age and not suppressing her cycles with hormonal birth control, she is always experiencing her menstrual cycles. Hunger is a basic human need, it lets you know when to eat, you will always be hungry throughout your entire menstrual cycle - this is called being human.
is a monthly sexual cycle in a women of reproductive age group which enables them the capacity toreproduce
Only females over 6 months of age will have a menstrual cycle. This will happen once every six months and last for 10-14 days.
wow can i accelerate menstrual cycle?
10 to 16 years old
You can have a baby anytime after you have your menstrual cycle up until menopause.
premenopause: see a doctor
8 is the earliest age you can get your menstrual cycle (aside from the extremely rare occasion of it developing at a younger age, but the story I read could have been myth!). I got my period at 8 years old.
The menstrual cycle starts with menstruation. The firswt day of your menstrual cycle is considered to be the first day of true bleeding during your menstrual phase.
a female is able to give birth at any age the female starts her menstrual cycle.