Im 26m in a relationship with 43F(american,never married/no kids) for 6 months. We met on hinge and it was just fun for the first 2 months. After a while it got really serious from both sides. She is beautiful, cute and is just like a lil kid, i love to be with her. I have dated alot of women but This relationship is the best relationship i have ever had, and she is just like how i wanted my wife to be, everything is just perfect.

Recently she started talking about marriage and having kids, which has made be really stressed about things because she is at the top of her career and im still growing and not really ready for kids atleast. But the thing is her body clock is ticking and we dont have time to wait.

I dont know what to do, and i want advice form all of you who are at an older age and can give me an insight about this. I really wanna be with her, i really love her and she is an amazing human being, but i feel like this will only work for 10-15 years max. As i would be 40 in my prime and she would be 57. I dont know how i would be when i ll be 40. I really dont wanna let her go but im scared it will not workout, please help.