question

Meow - thats so true wat u sed about wat ur being used 2, my partner was on ACC and i was doing a course so we weren't getting much money and now we get about $600 a week and its heaps i feel like we are so rich lol I'm not even going 2 think about work until Jack is at least 1

I think you should try to breast feed as much as you can for as long as you can (within reason of course!)- but if you can't express enough milk then definitely start supplementing with formula.
I had to do this when Charlotte was about 4 months as my milk began to run out. You do need to realise that your milk supply will decrease if they are not being stimulated as much (not like that! ) and it can take a while for your baby to get used to the taste of it as its quite different to breast milk. You can try maybe doing half and half for a bit? If you are planning to do it I would look at starting a couple of weeks before you have to go back.