Hawthorn Cottage (слэш)

After the war takes Ginny and leaves Harry adrift, Hermione suggests the Ministry's new Magical Breeding Program—a last-ditch effort to restore the wizarding population. At eighteen, Harry applies, desperate for purpose and someone to love.
Two failed matches later, he withdraws and spends his early twenties finding himself. At twenty-two, he tries again.
His third match is Severus Snape.
Neither expected this. Both want the same thing: a child to love, to protect, to give everything they never had. What starts as an awkward arrangement becomes something neither of them anticipated—a family, built from the ruins of war.