I would just wait for the 18-20 wk u/s to find out the gender.
i wouldnt buy it. i know a few woman who done the intellegender one and 2/6 was right.. and 27.00 i wouldnt even consdier it. esp. since it isnt 100% correct :0) if it was maybe around 5-10.00 dollar or so i might tryit for fun but more just not in my mind ....
I did some research (on google) and according to people who have tried it, it's only 50% accurate. Some people are believers, for others like myself, it was wrong. If it were cheaper I'd say go for it. But we spent $30 and it wasn't all that exciting.