Hi everyone! Hoping I can join you.

I'm almost 15 weeks pregnant with our first child; I am due June 10th. We're hoping for a girl but planning (at least for now) on being surprised. I'm finally starting to feel better and a little more like myself, and enjoy being pregnant a bit. We were very lucky and got pregnant the first cycle trying.
However, I had sad news today and hope for some advice or commiseration. A good coworker of mine became pregnant the month before I did. When she announced she was pregnant with her first baby, she's the only one I told that we were trying because I had to tell someone but didn't want any pressure or questions. She just went in for her 20 week anatomy scan and learned they were having a boy! However, they saw that one of the arms/hands looked odd, like maybe it wasn't developing properly. She was scheduled the next day (today) for an appointment with a specialist an hour away, and I heard from another coworker today that she is losing the baby.

I'm not sure if that means something went wrong and it's happening naturally or if they had to make a decision or what, but I feel so awful for her. And I feel guilty. Understandably she doesn't want anyone to talk to her about it when she comes back to work, and I just want to be able to melt into the wall so she doesn't have to see me. Our whole office, being a couple dozen people who are exclusively women, has been so excited and happy about having two pregnant ladies there at once, and now of course the whole atmosphere around it will change. Has anyone else dealt this situation with a family member, close friend or coworker while you were also pregnant? I know to give her space but I just don't know what to do and feel so bad for her. And of course, it makes me worried about my own baby also.