While on birth control, your periods should last just as long as when you're not on birth control. Some women regularly experience 2-3 day periods while other women can regularly experience 6-8 day periods.
Certain women cannot use birth control pills
The birth control pill will (or at least should) make your periods more regular and less intensive. The bloodloss will be far less (for most women)
Choice about using Birth Control.
Can birth control pills make women more fertile?
By Educating Women about Birth Control
There's no medical reason not to.
Many women have no period on the BCP. Do not stop taking it as directed.
Nausea is common with a lot of women on birth control. As for hot flashes that's not normal something you should probably get checked out by your doctor.
About 90% of women can get pregnant after a month without birth control.
No, there is no increased rate of miscarriage for women who are pregnant while taking birth control or who get pregnant after stopping birth control.
Choice about using Birth Control.