Thanks for query,
You have taken a right decision to take birth control pills.
is an emergency pills & never used as a birth control pills as it disturb your hormonal
level & your cycle too.That is the reason you do not have period for 2 months.
Usually combination pill is more cycle friendly ten progesterone
only or mini pills.
If you have any embolic disorder then avoid this pills.
You should choose any brand.Follow the instructions on pack.