I just finished a 6 week cycle of
var and my periods still came but where late and lighter than normal(sorry if too much info)

But as for birth control I would not count on using it as the only protection against pregancy. I have been told that some women lose their periods all together and then how would she be able to tell if its the
var or prego? I wouldn't want to take that risk thats for sure!! And I am having a few "doubts" on the legitamcy of the
var out there so she would have to rethink about what she is putting into her body...she may think its
var but it maybe something else, so she should take even more precautions unless she is 100% positive it is
var..like lab tested or from a Doctor. Just my opinion but pregancy is not something to play with when u are on steriods.