Hi all bit nervous to post so please be gentle.

I’m very nearly forty.
After several years in a relationship my partner has changed his mind about having kids now saying he’s no longer sure he wants them. He seems to be erring on the side of no.

I am devastated and know that I can’t go forward with the relationship if this is the case

I was upfront at the beginning of the relationship about kids being a deal breaker and he said he was keen for a family.
We started to plan moving to appropriate home, and set a provisional date to start trying.

Six months later here we are,

Any similar experiences? Happy endings? Advice?