Hi Leigh,
I am sorry to hear of your losses. You seem to have loads of pg friends and IKWYM, it is the one of the hardest things to cope with right now. Don't feel bad about feeling jelous. It is not nasty or unexpected to feel sad when you friends have something that you so badly want. If they have not been through m/c themselves, then maybe they dont know how you feel right now?

I met my friends daughter for the first time last week. It was actually OK, not as bad as I was thinking and it probably helped that she is already 6 months old. Oddly, the only time that I got upset was when my friend started talking about the laste stages of pregnancy and the birth (at which point, I changed the subject) Does DH know how you feel? Maybe he could take you somewhere nice after you meet your friends baby for the first time, or could you plan something to do together that might take the sting out of a stresssful introduction to the new bub. Last week, I promised myself a nice long soak in the bath with a glass of wine for when I got back from meeting the baby.

It must be really tough for you at the moment. I hope that you have some supportive friends around you (who arent pregnant). Let us know how you get on.
Good Luck