I get where you're coming from OP & especially if you're the older one in the relationship. I felt similar before dh & I were married & especially if you want children etc
We started going out when I was 29 & he was 26. We both knew pretty much straight away that it was different & we were committed
When we met I was living in a city 300km away from him but about 6 mathssteeca job opportunity came up where he lived. I went for the interview & got the job!
I 'temporarily' moved in with him.(the plan being until I found my own place ) & never left.
After 2 years together I started to get a bit anxious about our long term plans - by now I was 31 & starting to feel conscious of time passing etc
Things were going so well between us & we were really happy together. We were heading to Paris on holidays & I sort of wondered IF he might propose while we were there. The night before we left we met good friends for drinks & they announced they were getting married so it turned into a celebration & the whole night was spent talking about their plans to be married 6 months later. I felt huge pangs of envy
On holidays, one night after dinner & drinks (not the finest moment to initiate a conversation of its nature perhaps) I brought the conversation round to friends wedding & how great it was & did he see similar for us. He tried to steer the conversation away from that subject which was a bit of a shock to me as in my less than sober state I interpreted it as meaning he didn't want to marry me. Cue tears & a weird late night row walking through the beautiful streets of Paris
He eventually revealed that he absolutely wanted to marry me & had been planning to bring it up on the trip but friends announcement the night before leaving had thrown him & he didn't want to overshadow their special moment. Plus he had it in his head that he wanted it to be a romantic surprise & that talking about it was wrong or not the done thing. He comes from a very fractured family with no experience of marriage & his point of reference were films etc
We cleared the air & any misunderstandings & realised we were both on the same page & that it was important for him to plan his proposal as he wanted to for it to feel like he'd dome it the right way in his mind. And he understood that at 31 I needed to have some sense of where we were heading because if we wanted children then time was of importance. It was a conversation (& tears) worth having!
When I was 32 he proposed. While I broadly knew from that conversation in Paris that we were on that track I had no idea when it would happen. It was really important to him.that he would ask me formally & he did such a beautiful job & had a ring made etc. Its one of my best memories
We got married when I was 33 & he was 30. And we had a baby when I was 35.
I think you need to speak to him OP. I know is scary in case he doesn't want it but I think its better to know either way as otherwise you're in limbo & it's agonising
Good luck I hope it all works out for you!