Wish I could - stay

I know that I said that I'd be standing by your side, But I...
Wish I could sta - y.
Believe me I don't want to g - o.
And it'll grieve me 'cause I love you s - o.

Copyright 2001 to Joss Whedon, Mutant Enemy Productions, and 20th Century Fox Television.

* Lyrics are not necessarily in the right order but you catch the drift.

Is leaving the only option when you desperately want something and the one person you love more than anything in this world does not. This person knows your heart but is unwilling to change their mind to appease you. Not the something you want is a simple thing that could be easily acquired and adjusted to. It is life altering and not something to be taken lightly.
I love my fiancé with my entire heart, but my biological clock is beginning to tick and loudly. Unfortunately, he is adamant about not having children. Up until recently, I had not really wanted children all that much either. I was in a if I have them I have them, if I don’t I don’t mode, but now things are changing in me. I mean occasionally the thought had crossed my mind that I might really, really want them, but it hasn’t been until the last two years or so that I have become almost engulfed with the idea of having a child of my own. Now that I am pushing thirty, I see babies all over the place. Literally. Everyone I know has children. I have become obsessed.
I love my fiancé but I don’t know if I can stay with him if he continues to insist on not having children. I don’t know if he will ever be enough to make my life complete. He should be. I should not want anything more than him. Most of the time when I am with him I feel sedated, complete, but the ache in my heart is getting worse the older I get.
I think this has all been made worse because of the fact that I have recently had a miscarriage. He did not take the news of my pregnancy well and I nearly left him over that. But most of the men I know reacted badly when their wives/girlfriends/fiancés etc. told them they were pregnant. So I figured it was a guy thing and ignored it. Hopefully, in a few months the need will dissipate and I can go back to my life.
We use the withdrawal method during sex and that has worked well for us for nearly ten years, in the keeping me from getting pregnant department. He is unwilling to change our methods. Therefore, the chances of us ever having another accident/surprise are slim. That fact makes me very sad.
I really do not know what I should do. I don’t want to leave him. I love him and desperately want to have his children, but . . . . . . . .

Talisman