I agree. I did the same thing because if you don't your friends hide from you. I hated hearing it but I also hated not being told. I ran into the bathroom at church after one of the only people who knew our troubles and who also had difficulty told us last. I had my five min and then said if she can over come all her issues so can I. I could also tell it hurt her to tell us too. So keep that in mind.
Each time I saw her it got easier for me and as she started to show it got harder for her.
Like she said asking questions and being around happy prego people I felt kept me positive. I also went to my girlfriends after each IUI to hold her newborn. It worked for us eventually.