If you are going privately, you need to book with an OB now. Just tell them that you are pg and give them the name of the doctor who will write the referral. You can then just take the referral with you to your first appointment, which is usually around 10 weeks. I would not go on about the home tests, the doctors test etc. just make the appointment and give them the name of your doctor! I would not wait until you are 7 or 8 weeks to book in, i know in Melbourne that is far too late to get in to most OB's!