PCOS & Dating! 💖

Soooo..... here's the deal! I've been dating my boyfriend for about a year now. I'm 25 & I've been diagnosed with PCOS.
My question is, when should you tell your significant other about your PCOS!? We arnt TTC. Although, recently he's been making small guesters about the future such as moving in together & possibly kids down the line. 😩😩 I'm more than ready for those things, but Idk I guess I just don't want to be a disappointment. 😔
Advice please! & Thanks! 😘