Taking Orovite has absolutely nothing to do with your menstrual cycle. If your menstrual cycle is regular then it will continue to be regular while taking this.
It may take a while but your body should go back to your regular cycles.
Both: during and after cycle.
By not taking it properly (skipping days, being inconsistent with the time of day you take it, not taking it for a full cycle).
Some people report that while they are on the pill, they don't have their period as much. Though I don't suggest taking birth control for that reason. You can't really make it skip your cycle. Some people have there period not change at all while on the pill. So there is no guarantee that is will delay or skip your period.
really it all depends on your body. I was on it for a while and stopped taking them, my period was actually like a normal cycle.
Birth control pill bring more regular bleeding while you're taking it, but won't make any long term change in your menstrual cycle after you stop. Therefore, stay on it as long as you like to have regular bleeding with the understanding that it does not cure any underlying problem causing menstrual irregularity.
After taking Plan B it is normal to have spotting after one's menstrual cycle for days at a time, if you just started taking the pill. However, if you have been on Plan B for a while, this type of bleeding may not be normal. It could be that the uterus did not expel all of the blood during your period and so spotting occurs mid-cycle.
No, taking a shower on your period isn't bad at all - you can do anything during your period that you would do any other time of your menstrual cycle, and just like any other time of your cycle you should bathe regularly to stay hygienic.
No either your period isn't regular yet which will take a while, or your cycle has been thrown off by something such as stress.
Night school? is sleeping a course?
Taking any antibiotics can make your pills ineffective. You should always use alternative birth control while on antibiotics (and through your next full cycle).
it all depends on how your cycle was before you got on the pill. I took every kind of birth control pill you could think of, and when i stopped taking it, it took my body a while to get back on track by its self, about 98% of the time they started every 28 days.