All things are NOT 100%

I just found out an interesting thing. What if you found out that after getting your tubes tied (to prevent pregnacy) that you all of a sudden found yourself pregnant!!! AHHHHHH!!!!! I am having to console one of my best friends because this just happened to her. I am trying to decide what is the best way to congratulate her and console her at the same time. I know how she feels, but I know she does not need this right now. Any thoughts would greatly be appreciated!