yes
Your menstrual cycle is your reproductive cycle, if you're a healthy fertile female then you're always on your menstrual cycle - I think maybe you mean during menstruation. At any point in your menstrual cycle douching is unhealthy and unhygienic: it changes vaginal pH, pushes harmful bacteria further into the vagina, and strips the vaginal tissues of lubrication.
No, the antibiotic Cipro can not cause excessive vaginal bleeding. If you are experiencing bleeding and it is not your regualr menstrual cycle, you will need to see your doctor or go to an emergency room asap.
yes
The menstrual cycle is the reproductive cycle, a domino effect of hormonal changes between the brain and reproductive organs - douching inside your vagina has no effect on your menstrual cycle what-so-ever. Douching is also unhygienic and unhealthy as it can change vaginal pH, force harmful bacteria further into the vagina, and strip vaginal walls of lubrication.
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.
You don't have a normal "menstrual cycle" when on Mirena, although you may have vaginal bleeding. Pregnancy with Mirena is unlikely whether or not you are bleeding.
The menstrual cycle is the entire reproductive cycle - I think you mean during menstruation.Yes, a woman can practice yoga during menstruation, in fact some poses can be very beneficial to menstrual health and ease menstrual cramps.
No you only produce eggs during your menstrual cycle
No, the egg itself is microscopic and cannot be seen during the menstrual cycle. The egg is released from the ovary during ovulation, which typically occurs in the middle of the menstrual cycle.
Because your menstrual cycle is the lining of your uterus shedding.
You can tell if your menstrual cycle is irregular because you'll be menstruating or experiencing vaginal bleeding at random times. Anything up to a weeks variation from your average menstrual cycle is considered to be normal, if there are weeks or months difference then they're irregular.