Today my worst fear came true

Today I had an ultrasound to check up on baby. I would have been 14 weeks today. During the ultrasound I knew something was off. The baby looked too small, the tech wouldn’t say anything to me, and I could no longer see that flicker of the heart beating. My doctor called my later to confirm that the baby had stopped growing at 9 weeks 3 days and no longer had a heartbeat. I am completely devastated. I had 2 very early miscarriages before at 4 weeks, but this is nothing like that. Baby was perfectly healthy with a heartbeat at my 6 week scan and my 8 week scan. My body still very much thinks I am pregnant. My uterus has continued to grow even though my baby has passed. I will have to get a D&C done to have the baby removed. I feel so lost. I don’t know what to think anymore. I have a 2 year old daughter and that pregnancy was completely healthy. Why am I losing these babies now?

Any advice on a D&C would be appreciated or anything encouraging.