Can't stop crying

It's been a little over two weeks since I lost my beautiful babies. I took the pregnancy test today like the doctor asked and it was very positive. I'm scared. The things that are going through my mind are in sane. I just want at least one to be in there still. We tried for almost two years to become pregnant, I want my babies back. I don't understand what I did wrong. Now I'm going to have to go in and be put to sleep for them to scrape the babies out. I need some comfort in this time. I feel like I can't run to my family or my fiance because no one quite understands what I'm going through mentally.