Puberty, pregnancy, menopause, infertility, but most likely it's natural fluctuations in hormones.
Not at all.
Yes, a womans cycle is calculated from the first day of her period
you will most likely be getting your period.
a womans period should come at an average of every 28 days
Menopause
the baby has to devolep in the womans stomach and has to be healthy before it can be born
Roughly once a month, hence why it is called a 'monthly period/cycle'
The first day of a womans menstrual period is just that - the first day of menstruation.
She bleeds out her vagine women have their period because their uterus is shedding its old lining. the blood is basically just dead skin cells
A young lady's menstrual cycle is called a period.
No. If you are having a period it is highly unlikely that you are pregnant. There are some cases where womans keeps having period along the pregnancy. But it is very rare.
The color of uterine bleeding on Mirena has no clinical signficance. It means nothing.