Twinkie, I used confirm brand with my pg last month.. got my bfp from 12dpo got a +ve blood test on 14dpo and also did a confirm and cyrstal clear test that same day which came up +ve and I used the same wee for a foretel test and it didn't even come up with a line.
I have had some trouble with the foretel in the past but just used it cause it was left over in the cupboard.. was really shocked that it didn't even come up with a hint of a line and I was definately pg..