well your cycle doesn't count.
but since she was on the pill and you used a condom.. 1 failed. so you are covered.
not sure why you are freaking out
but 1 more piece of advice, if you freak out over this in front of her she is gonna lose a lot of respect for you.. trust me i have been there.. females are funny like that. i would just drop it and stop stressing out and from now on even with a condom pull out always so even if it breaks you are safer. also on the flipside if a girl goes behind a guys back and gets morning after pill or gets a pregnancy test I would feel like she was hiding things from me, so put yourself in her shoes.. imagine accidentally finding a pregnancy test in the trash and wondering why the fuck your gf was testing herself. talk to her about it but don't act all stressy like you can't handle situations. if you keep freaking out over this it has the potential to ruin things
and again i reiterate AAS IS NOT BIRTH CONTROL!