I understand completely; I felt the same way so often. It worked for me too, but took me 12 months to finally get the BFP, so as hard as it is, just be patient, and it will happen. Best wishes that is comes sooner rather than later!

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TTC #2 since 3/06
11 cycles on Femara--BFN!
Feb. 25/08--BFP on 12th cycle!!!!!
EDD Oct.31-Nov.2/08!