Honey, sorry to be harsh but I doubt he will ever marry you!
I have been together with my boyfriend for 9 years and I don't know if I ever want to be married, but for last 2 years I know I am not going to marry him. Or have kids. Or buy a property together.
I have briefly told him that and the reasons why. Therefore I would be stupid if I marry him or have kids. And since he knows that stuff it's up to him if he stays or if he goes.
To not be seen as a bad person, I once wanted to marry him but he didn't back then. And I'm glad we didn't do it because he cheated several years ago, showing his true colors. So for now it is ok relationship to be in, but I doubt it will be a happily ever after for us!
If you say you have talked about marriage and every time he has his reasons, you could talk about it once again. What the hell, you have been together almost 10 years, you are in your thirties, what more are you waiting?
If he still is convinced that you have to do x, y and z before you get married but is happy to start a family, you will have to consider if you are happy with it. Is this is the relatsionship where he will be by your side no matter what happens, is he going to do his fair share of childcare and day to day chores in the house? Will you be financically independet if you are on maternity leave or if you split up? Will you despise him that you didn't get married?
You really have a lot to think about before you decide what you are going to do with your life. But no matter what you decide, don't play your cards on the fact that he will definetly marry you once you have kids, you have lost your weight and so on...