Having been through the experience of losing a child, I can truly say that I know how you feel. I'm so sorry that you and your husband would have to go through this. Please know that it was just as hard for me as it was for my wife. I imagine he feels the same. Seeing you go through what you did, not being able to help in any way and feeling the loss just as deeply doesn't make it easier. Find comfort in each other. Talk a lot. Cry together. Scream together if you need to. Hang in there. my prayers are with you.
Im so terribly sorry for your loss.