I"d forgotten about it but I did loose an IVF friendship when my friend saw me in a clinic waiting for an appointment (she was waiting for an appointment too) and she didn't tell me she was pg.
She told me a few months later. She and I had talked and talked on the phone and comforted each other through some very tough times.
We had met at our first IVF egg collection.
I was very hurt she hadn't told me she was pg that day. I would have been overjoyed for her (not jealous at all). Anyway in the end I lied and told her I needed space as my journey was getting really hard.
But the truth was that I was just very hurt she didn't share her news with me.
I vowed not to keep things from others I knew were cycling too. I"ve never contacted her again and its been nearly four years... thats life. I guess your friendship will survive if both of you know and meet each other's expectations...