I have no idea, but watching this thread with interest.
XP desperately wanted a baby, so much in fact that I went through multiple miscarriages trying to have a baby.
XP was the driving force behind each and every pregnancy IYSWIM.
Since we split, he has no interest in DD whatsoever, he has never paid a penny in maintenance, only sees DD when he has been kicked out by his latest g/f, so approx once every 6 months. DD talks about him all the time, in fact every time she hears or sees anyone else with their daddy. Yet he is never ever there for DD.
In fact, if the truth be told, I am convinced that if I rang him right now and he felt like answering, and I told him that DD had no food/clothes/water and he could help, I guarantee he wouldn't.
He would merely make excuses, and put the blame on me. (Don't you get CTC for DD? If you can't cope with what you get from the govt, give DD to me full time and I'll bring her up
)
He is the definition of deadbeat dad, and I still feel unbelievably angry at him sometimes. It kind of washes over me when I am least expecting it, or when I am struggling to cope with DD/having no money, all the things he could alleviate if he felt like it. 
I have never felt so much anger towards someone for as long before in my life. 
I know this will probably go down like a lead balloon on here, but tbh, I wish he was dead.