my friend moved over to Adelaide in Jan this year, him and his missus have been married for 5 years (together for 8) and have a little boy who has just turned 1, they got
PR straight away and applied in dec last year.
I would hazard a guess that you will get
PR, I think in the 'rules' it says that if you've been together longer than 5 years (defacto not dating) and also have kids then you get
PR.
Mind you I have just drunk a few beers so my memeory might be a bit off......!!