Just wanting some advice 
my partner and i are 32 have been together 12 years and have an amazing 7 year old who we love so much and is our absolute world!!! But i am getting to the stage where im wanting another baby!! But my partner isn’t too sure ( for many reasons) which i totally get but i dont want to get to 40 - 45 and regret not having anymore!!! We have had afew conversations but i feel like he doesnt understand where im coming from 
Tia
communication is key. You also have to fully understand where HE sits. I know it’s frustrating when you don’t feel heard. sounds like you guys need to talk some more. keep in mind tho, you cannot force him into having another child. it’s equally unfair. same as if he were forcing you into a decision like that. keep talking it out with him. I hope y’all can come to an understanding with each other.
I don’t really have any specific advice other than communication. What I can say with certainty is that you still have time. I had my first at 37, and my second a week shy of 40. Keep your chin up and hopefully the 2 of you can come to a mutual agreement.