I disagree with some of the responses. If I were you, I wouldn't tell her right away. Here's what I mean, and what I think you should consider. I had a friend who was so excited about her first pregnancy. She loved all of the attention she was getting and stuff because she was it was her first and none of our other friends were pregnant at the time. Well, low and behold, I got pregnant about 5 weeks after her. I chose to let her relish in her own excitement for awhile before I told her. I just felt that if I waited even just an extra month to tell her, that it may help her to keep from feeling a little disappointed about "sharing some of the attention". I know it sounds silly, but we all know how some girls are, and I was afraid she would be one of those girls who would want all the attention, and therefore end up being disappointed by my own pregnancy. Anyway, when I told her, she thought it was really sweet that I took her into consideration that way, and ended up being really excited for me. So, why not wait just a few more weeks? And try not to make a big deal out of the whole "telling her" part. I would tell her, the same way I would tell everyone else. If you try and show her sympathy, it may be harder on her than if you didn't, because you'd be making her feel like she should be sad, does that make sense? I would tell her in a group of family members, or over a lunch or something, but I definitely would not be like "I have to tell you something, but I don't want you to be upset and I don't want to hurt you" because you're jumping to conclusions about her feelings, possibly putting feelings into her heart that she wouldn't even have. Sure, she's going to be sad, but not because you're having a baby. It will be because it is a reminder of the baby she just lost. The less of a deal you make out of bringing her miscarriage into the news, the better it will be for her.