I want to convince my bf were ready for a baby!

Basically I'm so committed to proving to my bf that I want a baby. Like I want to wait when I'm done college and set a career but I'm anxious as well. Ugh I'm working. I'm also on my steps to driving And Idk what to think of to show him. He's set on waiting a good seven years more but I'm super anxious. I guess after miscarriage. He thinks I've been obsessed. I even bought a reborn doll (lifelike sculpt weighted and painted to look real ) for like three hundred bucks almost. Cause I want to care for something. Don't judge ! 🙈. I read online it'd be somewhat therapeutic for women who have miscarried. (Still waiting for her to come) ordered not long ago.