Totally normal feeling. In the 9 months I tried and tried to have a baby and kept losing one after the next, I had several family members who announced their pregnancies. One of whom knocked up his FOURTH baby-mama in 8 years and we were all supposed to be jumping for joy? I swear I almost threw up.
I remember feeling insanely jealous of those who were getting pregnant so easily. Especially the ones who were not trying or those who "were not sure" how to feel about it. It made me want to scream about how unfair life was. And it is unfair.
This room is absolutely different in the sense that you KNOW the ladies in here who get BFP's have been having issues themselves and have "worked" to get where they are going. Naturally, you are happy for them...and sad/angry/envious for yourself. You can't control those thoughts...just how you react to them.
But I agree it is so hard when people announce their pregnancies happily and without worry, when you not only want to be pregnant really badly, but would be terrified for the entire time because of the history of loss. It will happen for you...I hope it does for all the ladies in this room