I think I'm obsessed with getting pregnant

Everyone I know has already had kids or just had one. I'm going nuts because my best friend just had her first and now my boyfriend's sister is pregnant. I told my boyfriend when we became serious that I wanted marriage and kids in the future and he told me he did too but now I am 26 and can't stop thinking about it and he told me he doesn't want either of those things. I love him so much but am angry that he did this and I wasted 8 years on a relationship I thought would lead into marriage with someone who loved me deeply like he does but now I feel like those dreams will never happen because there is nobody else I want children with. My soul aches for some children of my own. Anyone else feel like this?