I need advise

Hey friends, I wanted to see if anyone had any similar experiences. I am 25 years old, I have a boyfriend of 7 years, and I have recently gave my life to Jesus. As I’m learning more about the lord and how to walk in faith, I am realizing that I need to make some major changes.

I am not a virgin, but I am thinking about not having sex again until marriage. How to I tell my boyfriend about this, and what do you all think about this decision.