Wanted child

So I'm engaged and have one child that is seven....the whole time we was just dating he said he would have one more child with me and I wanted to wait until we was married...but now that we are engaged he saying he doesn't want any more. He has two . But it hurts and I can't stop crying about it when I'm alone...I think it has something to do with the age difference of 16 yrs I'm 27 and he is 43