Only Pink Dye Tests
I highly recommend using pink dye pregnancy tests. Thy are very accurate and have a very low rate of false positives. I have used the cheap dollar store tests and the expensive name brand tests and I found that they were pretty much the same. I stopped spending my money on the expensive name brand tests and just used the cheap tests.
Never use the blue dye pregnancy tests. They are known for having a high rate of false positives. If you have been trying to conceive for awhile one of the worse things you could get is a positive pregnancy test and get excited just to find out it was a false positive. Many women have been let down by these tests.