I'm so sorry. It sucks to cry in front of co-workers. I'm glad she was sensitive and not gloating, but it still hurts to hear about first OB appointments when you have been trying for a while.
I'm so sorry. I have been exactly where you are and it is awful. You want to feel happy for the person, and you do, but you feel jealous and sad that it isn't you. And at the same time you feel bad that your friends feel nervous or hesitant to tell you their good news for fear of hurting you. It is really tough and I am sending you so many hugs.