Whatever the outcome of the test I wish you and yours all the very best. The baby's 2, so maybe he'll be started at playgroup by the time the stork lands with baby no.3. My third child was also a bit of a surprise (as in Holyfuckingshit nofuckingway herewegoagain - Arrrrrrrrrrrrg!!!) but he's one of the best things thats ever happened to us.
You'll make things work Dog, you're dedicated to your family and it isn't all hard work - it's lots of fun too

btw a tenner says it's a girl