Mine was pretty normal, a little long actually but heavey first day or 2 then tapers off.
I'm very sorry for your loss. I had 2 miscarriages and remember that first period always being a bit heavier and longer too, with some additional clotting. I wouldn't get too concerned just yet, but don't let it go too long without at least mentioning it to your doctor. They may need to make sure that you passed everything naturally.