Relationship confusion

So, this is my first time writing about my life or talking to anybody about it ... I have been with my boyfriend for over 6 year , since I was 23 ...I am so ready to be a wife , have kids and enjoy life , but because he was married before and had a very bad divorce, he tells me he is not ready for that , he talk to me about kids , but every month I am ovulating he bring all kind of excuses not to have sex . I have tried so many times to brake up with him just because I want kids so bad and because he doesn’t want it , I was thinking that is best for me to move on .. By the time I find the right person , to trust and to be with , I will be over 30 and I want kids while I’m still young ... I just can’t explain how I feel now . I told him that he is selfish , he only think about himself . And you know what he told me !!! I understand that this is what you want , and I will let you go when you are ready , but I don’t thing now is the time ... I just don’t have the “balls” to move on ... sometimes I think I am to annoying of talking about kids or marriage with him .. I’m just hurt 😢

Didn’t mention that he is older then me and he already have kids with the ex ..