My first miscarriage

Hello I’m new to this group I just want to vent and tell my story. I was expecting my first baby and went for my 12 week checkup on Friday and when I got there she checked with the Doppler first and said the baby must be too small so let’s do an ultrasound. I was so excited I wanted to see my baby! Well when we got in there the tech put the gel on and put the ultrasound thingy on and I automatically knew something was wrong the sac was empty. (Btw I had went for a appointment previously and saw my baby and heartbeat that’s how I knew something was wrong) she called the doctor in and she looked. And then she said that the baby had stopped developing at 9 weeks and there wasn’t a heartbeat. How does that happen? It was there and then it was just gone I was devastated. I have to go for pre-op tomorrow and get a d&c on Thursday. I don’t know how to think or how to feel. There’s no blood I only spotted a couple of times very lightly, I stopped smoking cigarettes I tried to do everything right. I really wanted this. It truly was one of the worst things I’ve ever heard in my life. But I had been in a horrible car wreck in June one week before my first appointment and I had been impaled by a power pole in my left shoulder causing my lung to collapse, had to do surgery and had a chest tube for a couple of days. I think that’s what happened that my body took a little while to process the shock. I know this is everywhere but I’m just trying to understand what happened. It was there and then it was gone. I just needed to put this somewhere and I’m so sorry to all the other mamas on here 💗💗💗 our angels are watching over us 💙🦋🌷💗