Typically three cycles (packs of pills); if you don't get predictability in vaginal bleeding during that period of time, it might be worth talking with your health care provider about a different mix of hormones. But make sure your expectations are realistic. If you think your period should come on the same placebo pill every month, you need to adjust your expectations.
It's very unlikely that you'd have a normal period the first month off birth control (I'm assuming by 'birth control' what you actually mean is the combination pill - please don't use these terms interchangeably, there are many forms of birth control!). Your first 'period' will be your withdrawal bleed as normal, but after that it may take a few months to get a real period again. It can also take up to 12 months for your cycles to regulate again once you stop using hormonal birth control.
You can't.
If you get your period while on birth control, you should continue using your birth control as scheduled. Bleeding does not change the schedule for taking your pill or changing your patch or ring.
I would not trust that particular birth control if it did not regulate your menstrual cycle. I had a similar problem after using a particular brand for a while and me and my doctor agreed to change to another pill with more hormone in it.
Birth control inhibits fertilization, not menstruation. Menstrual cycle will still continue.
By using hormonal Birth Control Pills you can safely go months without a period.
Yes. Some birth control methods stops a women from getting a period for up to 15-18 months at times. Especially if you are using the Depo-provera birth control shot.
Skipping your period by taking extra birth control pills or fewer placebo (sugar) pills lowers, not raises, your risk of pregnancy.
There is no guaranteed way to stop your period for just a few days. However, hormonal birth control options like the pill, patch, or IUD can help regulate and sometimes even skip periods. It's important to consult with a healthcare provider before making any changes to your menstrual cycle.
If you get your period while wearing the birth control patch, continue using the patch as scheduled. If this becomes a problematic pattern for you, contact your health care provider.
There is always a chance, but since you're using birth control it's just less likely.
Stress is not likely to affect your period when you're on hormonal birth control, as the medication "takes control" of the hormones that affect your period with stress.