Dear OP am so sorry for the loss of your daughter this is so devastating. It really is incredibly sad and of course you will be going over in your head what could have been done differently. Please do not blame urself you were under the care of "professionals" who were supposed to be the ones making the decisions in regards to your pregnancy care. You are not a Dr or midwife or have the knowledge of what that care should have been given so please do not put any expectation on yourself that you should have or could have done anything any differently.
I understand what you are going through on various levels and wanted to share my story with everyone. Firstly I just had a d&c last weekend following a MMC at 10 weeks and 5 days this was just 9 days after loosing my beautiful dog of 13 and a half years. Gutted beyond belief. Am 44 years old and feel that this was the last ever chance for me. I had another miscarriage 2 years ago and it has taken this long to get pregnant again. Am mind just frozen in how to proceed from here. What do I do next I have no idea?
In regards to your medical care or lack of appropriate care you could (when you are ready) seek legal advice. I lost my lovely mum last year due to medical negligence and am in the process to pursuing legal action. This is a very rough road emotionally but one am determined to see through for my mum's sake as she died at just 66 years old and her death could have been prevented. Like you I tortured myself thinking I could have done more but I stopped doing this to myself eventually and came to realise that the faults lay in the hands of the medical professionals not me.
Please consider if getting in touch with the cruise Breavement helpline they are great and very easy to talk to and helped me a lot after my mum died:
www.cruse.org.uk/get-support/
There is also Sands which I had 1 to 1 counseling with following my 2nd miscarriage at 12 weeks again a MMC this was 10 years ago. I have had 7 pregnancies and am fortunate to have 2 beautiful children but lots of losses and lots of pain and hurt along the way too that is deeply ingrained.
Sands were also really helpful and I plan on getting in touch with them again this week:
www.sands.org.uk/
You don't need to wait weeks to speak to someone you can use the Cruse or the Sands helpline numbers straight away.
You do need to take sometime to heal it takes a long time to process what has happened and you need the right support networks in place to help you. You have a lot to think about but please just take life a day at a time. At the end of each day when you are lying in bed probably wide awake and not able to rest your mind just tell yourself that you managed to get through another day and you will get through the next day too.
Take care.