I hate it when people go "Well, I'm doing it this way and if you don't like screw you". When it's something so life-changing as a baby, it's twice as maddening. Jack had half a hand in it, he got half a say. I think even in canon (where Jack would be the m-pregger, we speculate), Ianto and Jack respect each other enough to discuss something big and come to a decision together.

And percolating... that's a good word. *adds it to Words Gracie Needs To Use More list*