pretty princess:
Hello Girls,
I too did the test 3 times. I did it one at ten weeks and it said girl, I was over the moon because I have two boys. I found it hard to believe so I did it again at 12 weeks and it still said girl, I then book myself in for a scan with Mr Penman in kent at 12 1/2 weeks and he said that he was 90% sure it was a boy.
I then emailed intelligender and the said they would send me another one, so I did do it again at 14 weeks and still says girl. So right now I am really confused and have my 20 week scan booked for the 19/9/08.
I am sure I will know then but Mr Penman was really convinced what to think ladies.
Although you were early at 12 1/2 weeks, I'd go with Dr. Penman's assessment ANYDAY over the intelligender. Ultrasound is accurate, not intelligender. It's unfortunate that so many of us have wasted our money (including myself).
Intelligender is nothing more than a PH test. You're getting girl results based on the PH of your urine...not the DNA of your baby. It's for fun...and a TOTAL SCAM.
My intelligender said boy and I'm having a girl.
Check out this thread below- someone took several tests getting both girl AND boy results. Someone even had a friend take the test, she got a boy result, and she wasn't even pregnant! 
I am disgusted this test is even still on the market. It's a total waste of money and I wouldn't recommend it to anyone. Those who got correct results happened to have urine with the right PH. A complete coincidence.
Trust Dr. Penman! 
The thread: http://www.in-gender.com/cs/forums/t/51130.aspx