Always told my son 'of course you have a father, everyone has a mummy and a daddy'
When my son asked me why he didn't see his daddy, I'd tell him that his daddy must be a very busy man.
I don't know if this was the right thing to say or not, but it satisfied my son, without badmouthing his father, and I felt this was the kindest option. I didn't want my son to feel the onus was on him AT ALL as to why his father chose not to bother.
As it happens, we traced his father when DS was 11yrs old, and DS would see his father but it all turned sour, due to father being a complete twunt!!
I get so angry at these deadbeat dad's. They only think of themselves, and refuse to see that it is the children that are being hurt.
Going through it all again now, with another deadbeat dad to my DD. XP so badly wanted children, but now DD is here, he only wants to use her to get his own way with me. NNot going to happen.
I feel so angry towards him.
On a more positive note, DS is now 17, and has never mentioned the fact that his dad wasn't around as a negative, nor a positive, just a fact of his life.
HTH