Am i wrong!? :(

My boyfriend wants to have a baby. But i keep telling him before we have a baby i want to get marry (we currently live together) 
He wants to get marry after.
But im telling him to meet me halfway. 
I wanted to get marry before moving in with him , but i moved in with him. Now i want to get marry before we have kids but he doesnt want to? 
What can i do ? I want a baby but after marriage ? Am i wrong?