I Need Answers!! Help!

So I am 25 and my husband is 42 we have a 5 year old child together and he has 3 older ones from his previous relationship. After my son was born he told me he didn’t want anymore kids. Well after about 5 years going back and forth he finally agreed to try for one more. Well a week after finding out I was pregnant 12/10/18 I had a miscarriage. And a month later his oldest gave birth to his first grandchild. Now he no longer wants anymore kids . After 8 years together I feel like things are pointless and he doesn’t understand where I’m coming from as far as wanting more children. He said that I am selfish for trying to “force” more children on him. What should I do? 🤔