Interesting topic. It got my attention!!!!!!!
I thought I was the only one who felt simular to this.
I have four children. I wanted another as I really loved being pregnant. I spoke to my husband who listened and told me how he felt.
I really found it hard at first to come to terms that I was not having anymore children. I felt special when pregnant. Eventually I realised that I am special when I am not pregnant too 
We wanted to give the best to the children we already had.
I gave up work when my seond was almost due. I did not have any work to give up that maybe one of the reasons why we perhaps had four.
Looking back now I realised that it was the best decision not to have anymore children. I have moved on to another stage in my life. My kids need me in a different way now.
I am also a childminder of FIVE CHILDREN. Would you consider a career with children ie childminding, fostering or adopting maybe. You both have to know whats best for you.
We thought about fostering, but thats on hold right now.
I got married in my 20's, children in my 30's and started my business in my 40's. I feel really great about life!!! NOT RESTRICTED BY AGE!!!!!!!!!!
How does your partner feel? Its important that its a joint decision. Its not easy when one wants another and one does not.
My baby is now 6.
All the best in your decision making !!!!!!!