We have one DD (17 months) she took 8 years, 9 IVF rounds and donor sperm. I then went on to have a complicated pregnancy that put me in hospital for some time. I am 40 this year (OMG can't believe I just had to write that), so the 'choice' really has been made for us - she will be an only.
I had a cuddle of a newborn over Christmas, he was so cute, but it didn't make me want one. I'm not sure if that is cause I know it won't happen, so I don't think about it or if I really am happy with one.