PLEASE HELP: Honest advice/feedback needed

I met a guy about 6 months ago and things have been great! Since we met, we don’t go more than a day without seeing each other. Our relationship is everything I have ever dreamed of. He is very open about his feelings about me and says he loves me, doesn’t want to be without me and plans to make me his wife soon. I’m 33 and he is 39. We are both single parents. I have a 7-year old daughter and he an 8- year old son. We would both like to have another child. I’m not one to move too fast so I am so shocked by our interaction. Is this too much too soon? He has not yet proposed, but I’m feeling it might come soon. Do relationships like this yield successful marriages? Please share your thoughts and experiences. Thank you so much!