When do men want a baby?

Hi guys, I need a male perspective please.

When did you realise it was a good time to start a family? I myself am ready now, although I'm not married yet, I've definitely met the guy I plan to spend my life with. The problem is I'm struggling to work out when the right time to TTC is for my fella. I'm 37 and he's 40 so time is not on our side. I really don't want him to feel pushed into anything he doesn't want. He does want children but he's not yet said let's give it a go. The waiting is killing me.

Has anyone any advice?