I'm so sorry for your loss...it IS heartbreaking and it IS sad and it WAS a real baby...I don't think you ever get over it, but it does get easier with time.
Its really hard with
DH's as sometimes, they just don't get how it feels for you. Men tend to want to fix things and they can't fix this for you so they kind of ignore it. Remember that there is no RIGHT way to feel, so
DH's response is totally valid too. Maybe you just have to talk to him about what you need from him as having something tangible to do makes men feel useful in a situation they otherwise have no control over.
I wish you all the best on your journey, take the time you need to grieve, be kind to yourself. Welcome to BB, I hope you find all the support that you need here.