hmmm....my best advice would be to do exactly what she has said to your friend and leave her alone. i know that probably seems harsh but u have to let her deal with this in her own way..
Its so hard when u've been trying for a while to have ppl around u fall pregnant whether its at the drop of the hat or a much deserved and struggled for pg....because all u want is for it to be your turn.
I've been and still am where ur friend is every1 and their husband is pg at the moment including my sister, my Sil, my dh's cousin, a close friend and probably some1 who has become my best friend....all of them deserve their beans some more than most but every1 makes my heart ache a little bit more that i can't join them......
She will come round i promise just be there for when she does and as awful as it sounds please try not to moan at her about the horrible bits of pg (she'd kill for them), or ask her if there's any news or anything along these lines....but most of all don't try and be a Non-pg friend or not discuss anything at the same time as feeling all of the above she will not want to be completely uninvolved....well eventually anyway!!
Good luck in your pregnancy. xxxx