TTC but need help

I had a miscarriage and than a D&C; at 15 weeks about three months ago. I felt like my whole world was over except for the fact I have an amazing man and two beautiful healthy babies by my side. It still didn't make the pain hurt less though. We have been trying for another child and it just hopelessly seems like my whole body is off balance. I know it is I just need help and hope. Any advice please. I understand it's different for everyone woman ( I'm going to med school) trust me. So I just want stories of women and their rainbow babies and success stories because I'm so scared it might happen again.