I'm going to start a cycle of Anavar, Clenbuterol and T3 and I am currently taking Minastrin 24 Fe 1mg/20 mcg providing 24 days of active therapy oral tablets (Birth Control). This makes me wonder whether or not Anavar, Clenbuterol or T3 will counteract with my Birth Control? I guess my main concern is whether or not I could get pregnant if I am sexually active while on all of these pills all at the same time or if I stop taking my BC while cycling. I've read how some people find it pointless to be on BC while cycling since the male hormones can cause a woman's menstrual cycle to decrease, but I have also read that if one continues taking BC while cycling then they should also use back-up methods. So as you can see I find this extremely confusing since some advise that one can be safe without BC while cycling, while some say back-up methods will be needed if BC is used while cycling. Wouldn't that just mean that the BC is counteracted, and that without BC one is at risk for getting pregnant?

I plan on starting my cycle on Monday, and I'm at a point for my BC where I start a new pack on Sunday. So I should experience my period this weekend. If I continue taking BC will I need back-up methods while cycling, or will it be best to give up BC overall? If I give it up, won't that mean I will still need back-up methods if sexually active? Thanks for your help