I know it may sound like a stupid problem, but I see many children of her age already with a sibling, and she would like to have one, too.
And it's hard hearing lots of people say " why didn't you make another one right after ? ", "this is the right moment if you what them to get along" or , " she is so lonely, she needs some company" , and so on.
But after all it's all up to God's will! And for sure there are good reasons why my path is this way rather than someone else's way.