I'm so very sorry for your loss
It's hard no matter how it happens. You did everything you could for him, and I KNOW that he knew how much you loved him.
Hang in there. I can't say it gets any easier, but the pain does get less gut-wrenching as time goes by. It's been a month since I lost my baby Starr, and I am able to look at pictures of her now without totally breaking down. One day we'll even smile when we think of our dearly departed little ones