I am sorry that you are going through this.
When it happened to us, my DH grieved as much as me. Maybe in a different way, but it was a much wanted baby and we were both devastated.
Even now, watching my little one, I still grieve.
I just wanted to mention the part where you said "it is not his fault I lost the baby'
I really hope you don't blame yourself and hold any guilt.
When it happened to us, a lovely doctor sat us down and explained the mechanics, or the science behind MC. The reason why it is so common, and why the don't investigate MC until you have had 4.
It helped me realise that there was zero , zilch nada, nothing that I could have done to change what happened. The baby was never meant to be the moment it was conceived and it had nothing to do with me.
NO pill i could take, not exercise I should have done, no amount of rest i could have taken, no disgusting concoction of juiced fruit and vegetables that my husband was constantly making to ensure I had the right vitamins in my diet, would have changed the outcome that was going to happen the moment he/she was conceived.
still grieved, but there was and is no guilt.
I hope you and your dh can work this out