Yes, i have been here.
I got to the point where i thought sex was a waste if i had my coil in still - DH was adamant no baby. I annoyed him for 18 months, in all honesty we nearly split up over this.
It came to a head on new years day 2007 - we had a massive talk (and shout) and we agreed that we would talk again in June; he would consider the bad things about it that were making him say no, and i would not mention it to him anymore.
I didn't mention it, and in early Feb he approached me and said he would like to, in the middle of woolworths!! I had my coil out the next day (got in quick,lol) and i'm due anyday now with our first daughter.
This baby is actually my third but the 4th child between us, i have a dss.
DH concerns were money and the fact he felt he had had enough of babies; but came round he later said becuase he saw the importance to me and for our relationship.
I think it is important to see each others reasons, and to hear each other - neither of you are more important than the other, unless he is nervous becuase of a big health risk for you, for example.
If it is money; show him a budget sheet that you have made. If it is a risk of PND tell him about the help you have looked into receiving.....etc etc.
I wish you luck; feel free to ask anything more.