my best friend fell pregnant by mistake a couple of months after i had a miscarriage, she was walking on eggshells for ages telling me and was really shocked when i was jumping for joy when she announced it to me...
the way i see it is if she is a true mate and im guessing she is otherwise u wouldnt be here worried about telling her, then she will be happy for you....i know i go to my mates house and she says the baby alana, go to auntie ema, that gets me a lil bit but i know that one day i will have one of my own and my friend is great and supposrtive through my ttc.
there is however a friend that has just announced shes pregnant and i hate it lol, i dont think they deserve one when they cant even look after the one theyve got, but thats a different matter lol.
i wouldnt rub it in her face, but i would involve her alot more in the pregnancy, dont make her feel as though shes the "odd" one out, im sure everything will be ok. x