I would say not to have kids for the environment and overpopulation. There are more than enough children, even in orphanages. Our population keeps growing, while our resources stay finite, and not to mention to make more room for humans, we cut down rich ecosystems, this killing other species. Look at the Orangutans. They are going extinct because of us and how much we need their spaces and palm oil for our junk food.

Ultimately, its your choice, but keep the environment and the future of our planet (and your children's/grandchildren's planet) in the back of your head. Many species such as rhinos will already be extinct by the time your kids grow up. Imagine the pollution and lifeless planet your great great great grandchildren will be living. If you and your husband reallyyyyyyy want more kids, look into adoption first before and give some young children a good Islamic home :) Muhammad (SAW) also used to be an orphan and Abu Bakr (RA) took him under his wing. Imagine if he (RA) didn't and Muhammad (SAW) grew up alone in the orphanage.