We have a DS who is 13 months. I have various health problems that made my pregnancy more complicated and when I was pregnant we said that if me and the baby came out of it in good health then we'd count our blessings and have an only child as opposed to risking my health again.
Over the last 6 months though I've had fleeting thoughts about having another baby, not having one now, but sometime in the future and I could envisage it happening and I liked the thought.
Out of me and DH he was always the one who was more determined that we wouldn't have another.
We have just been chatting about remortgaging (we've had a few meetings with a financial advisor) and basically it came out that DH definitely isn't bothered about having another baby and that as far as he's concerned it's not an option.
I know I can't force him but I genuinely, genuinely thought that as the years passed he would start to feel like another baby would be a wonderful addition to our family. He was just so nonchalant about having another baby and he was giving me his reasons for not wanting another and I felt my eyes well up with tears.
It upset me so much to think that I will never be pregnant again or have another child.
My DH said, "I'm happy with what we've got, I'm happy with just one." and although I absolutely adore my DS I feel like a 2nd child would be the icing on the cake.
I dread the day when DS starts asking for a brother or sister, or asking why he hasn't got one 
I couldn't look my DH in the eye during the mortgage discussion as I didn't want him to see that I was fighting back tears.
I know I can't force him to want/have another baby and I need to make my peace with that, but I feel so upset about it and upset with him.
I know his wishes trump mine in this situation but it upsets me to think that because of him I'm going to be deprived of something that I actually really want.
I know it's me who has moved the goal posts so I shouldn't complain but I guess a part of me always thought we'd have another so to hear DH say he definitely doesn't want another (and basically say the decision is final) just makes me so sad.
How do other couples cope in this situation? I'm worried about resentment forming.