No, not every woman has a menstrual cycle. Most healthy adult cis-women will menstruate, however women who have reached menopause will no longer have a menstrual cycle, nor will women who have had a hysterectomy - basically women who are no longer fertile. Women who use hormonal birth control don't have a menstrual cycle, as the purpose of hormonal birth control is to suppress the menstrual cycle so they don't ovulate - the bleeding women get is a withdrawal bleed, it mimics menstruation but isn't the same as menstruation. Many women were born biologically male, thus regardless of changes to their gender or genital reassignment surgery to change their sex, they are not capable of ovulation and thus don't have a menstrual cycle - although interestingly hormones given to many transsexual women can create symptoms similar to that of the menstrual cycle.
Most women ovulate 14 days after their last menstrual cycle on the average 28 day cycle. If trying to conceive, there are indicators you can use.
use a menstrual calender
Women are always on their menstrual cycle - I think you mean during menstruation. Yes getting into a hottub during menstruation is fine, but if flow is heavy you would need to use products like tampons or menstrual cups to avoid blood getting in the water.
The term menstrual cycle refers to the reproductive cycle, if you're female then you will always be on your menstrual cycle - excluding pregnancy, using hormonal birth control, if you have a hysterectomy, and after menopause. You can use monistat at any time, but remember that during menstruation if you have an infection you shouldn't use tampons at all.
The menstrual cycle is the entire reproductive cycle, I think that you mean menstruation/period. Gymnasts do the same as every other girl, just use a pad, tampon, or menstrual cup.
The term 'menstrual cycle' refers to your reproductive cycle, if you're a healthy fertile woman then you are always on your menstrual cycle, I think you mean after menstruation.When you're fertile depends completely on your menstrual cycle, you'd need to use fertility awareness method to determine when you are fertile or not.
You may get your period, but probably not. Depo changes the menstrual cycle in women who use it.
Women would use tampons or menstrual pads. There are also options like menstrual release too.
Pads and tampons hello