Hmmm well it seems a little strange that he didn't do any kind of test... mine did a urine test but not a blood test, and usually all they'll do is a qualitative blood test which tests for HCG (the quantitative ones measures how much HCG). If you're really worried you could go back and request a quantitative HCG blood test.

Also, have you decided what type of care you are going with? Some GPs assume you'll use the public hospital services (midwife and/or ob) and some assume you want to go with a private ob, so you might have to go back and ask. Though it is also a little weird that you didn't refer you to any at all.... you might have to choose what type of care you want, contact them, and find out if you need a GP referral, and then go back to the GP if you do. Don't leave it to late though, I know private ob's do book quickly. If you are going public, contact the ante-natal clinic and see if they need a referral. They usually see you at 12-14 weeks at the earliest.