Just thought I would post a cautionary tale about a recent experience.
I will begin with the great news back in Nov 2012 when we were granted our 190 visa for me my wife and 3 year old (happy days) we then planned our reccie visit to Adelaide for March 2013 this came and went without a hitch, upon returning we found out my wife was expecting a baby in December 2013 (happy days) April 2013 contacted immigration case worker for advice as would like to have baby in uk so family can see little one before we move for good, information received was that this is not a problem as all we needed to do was to get a birth certificate and passport for the baby when she arrives and send it to them and she would be added to the visa no charge (very happy days)
17th December 2013 10lbs 8 ounce baby girl arrives (very happy days) next day birth cert obtained and passport applied for, as soon as passport received this is sent to case worker as previously agreed.
at this point movers booked and paid for, house disposed of, flights booked, temp short term accom booked and paid for and looking forwards to 1st March departure (Happy days)
Then Boooom, email from Case worker stating they gave wrong advice and we would now need to apply for a child visa which can take from 3 to 14 months and the applicant cant be in Australia when application lodged or granted and it costs $3000 + medical fees as well not to mention the thought of loosing all the money already forked out if we have to cancel march departure ( not very happy days)
Thankfully the case worker and DIAC have understood the position they have put us in and are working hard to resolve the issue so baby can travel with us and not have to leave the country to get a visa granted, this has been a very stressful few days and one no one should have to go through so please take this advice if you find yourself in the situation of having a visa granted then finding out your having a baby.
Don't stay in UK until baby has been born, have it in Australia as the baby would automatically be granted the right to stay in Australia, no cost and no hassle
Not out of woods yet but phew!!! I can start to enjoy the thought of being in Oz again in March (happy days)