Hurt and confused

Ok, a little backstory: I've had 2 miscarriages with my husband. My belief is when two people create a life, a piece of each of their souls goes to create the new one. If something happens before the baby is born the two halves of its soul goes back to the parents but separate and waits to be born.

I want this child so bad, and after much discussion and convincing my husband finally agrees to try. I've been religiously tracking everything and even bought an opk, but every time it's 'TIME' my husband seems to have some excuse. I feel like I'm the only one who's trying. I'm 28, and I'm so stressed about this. Am I just being paranoid or is he just stringing me along for another heartbreak? He's told me yes and then changed his mind before. I don't know how to talk to him about it, I don't want him to feel like I'm pushing him too hard. Some advice would be so appreciated.