First, thank you for not killing little Bonnie/Lily. I was holding my breath until Tonks died, then sighed with relief.
I'm not a very big fan of mpreg, but I really like how you handled it here. You didn't make Severus an excellent 'mother.' Instead you kept him very much in character and had him handle motherhood (and the depression that comes after) realistically and with a masculine flair.
And I love mature, strong Harry. It was so ironic that in trying to be a better man for Severus, Harry ended up being better period.
Really enjoyed this, from beginning to that lovely, hopeful end. Excellent job.