I am sorry that you are going through this. I lost my daughter about an hour after birth but she was very premature. However, my situation is similar as I had bleeding sometimes a bit and the nurse practitioner I saw at my then on office said some bleeding was normal and ignored it. The ultrasound showed an issue which they ignored and acted like it wasn’t a big deal. 7 weeks later I was 2cm dilated and my ob was not experienced in this issue so she sent me how to prepare to lose my baby. There are a few other things they did to make things worse. It has been a long journey since then but I’m living with it. If you need to talk even just to vent about what happened I’m hear to listen. Talking about it helped me process what happened. I also talked to a lawyer who said I did not receive proper care (which was confirmed again by my new amazing doctors). I didn’t seek legal action in the end but it did provide me with information and answers. I wrote a letter to the terrible ob I had before which did make me feel better although when I sat down to talk with her after I lost my daughter she denied things and even made it seem like I did something wrong. She acted like me crying about my loss was not normal.
It’s ok to be angry, sad, broken hearted and it’s ok to be that way for a while as it’ll take time for you to learn how to live again. It will always be there but it has changed you and you will be ok again someday but right now allow yourself to grieve.

I wish I could just hold you and let you cry. I am so sorry for what you are going through. Grief is a hard road to walk, but you will get through it one step at a time. The first step is to cry and call out to God in your pain. He will get you through this. Please know that I am praying for you.