I love your post because you have been able to explain so many reasons why you want a small family.
Like during the time of pregnancy, where the woman will undergo a lot of pains during childbirth, it is true and if God is not on your side they might get complications and end up dieing in the process of giving birth to many children.

You also suggested that if everyone will agree to be having small family then the world won't be difficult place to stay, as parents will be able to carter for their children if they are few.

You wrote so well and I wish you success.