When you stop taking birth control you can now become pregnant. If you had an irregular period before birth control pills, your period will go back to irregular periods. Heavier and longer periods may occur as well. You may also experience withdrawal bleeding which your body's way of ridding the birth control hormones.
When you're on the birth control patch, the patch provides a constant level of progestin and estrogen. When those hormone levels drop, withdrawal bleeding occurs. That's why you bleed during your pill-free week, and why you may bleed if you have a patch fall off.
The birth control pill makes both menstrual cramps and flow lighter. When you stop, both will become heavier, as if you'd never used it.
You will experience a withdrawal bleed first and your period will arrive 4+weeks after this.
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.
Get off the birth control would be the place to start...
You take birth control as scheduled regardless of bleeding.
Yes, because your off birth control...
no
It ( a woman's menses) often becomes heavier, and irregular for the first few months while your body is adjusting back to creating and using its own hormones.
You get a withdrawal period AFTER you go off birth control.
It takes about a year to get your body back into balance. You may miss periods for quite some time or even have more than one period a month. It depends on the woman. It's great you are off the pill because they aren't that good for you. Birth control, short-term, used for heavy bleeding or uncontrolled periods can be a good thing, but to take them for years is dangerous.