When you see meet your baby?

I am in a realtionship with a guy that I am starting to think does'nt want to have a baby. I really do and I now know that I may have to leave him to do this , I will miss him so much and I will be heart broken . If I do have a baby do you think that when I see my child an have my own child that this will make this heartache easier to deal with? I know I posted this in the wrong section but I did want the advice of some women who have had baby already. Thanks for your help