I took the Clear Blue. It's about 20 dollars at your Randall's store and you get two in the box so it's worth it. I took it the day of my expected period and it came up positive. A week later I took the other test just to make sure and it was positive too. There are some other brands that can detect it earlier but it just made more sense to me to wait until I had enough of the hormone to detect it the first test that way I didn't waste my money on multiple test. Good luck I hope you get the outcome you were are looking for.