Hello, I just wanted to share my experience of the IC one step tests you can buy online. They are supposed to be very sensitive but I tested at 11dpo and could have mistaken it for a BFN. I had to look by the light and tweak it on a photo. Since then, it's a week later and have had very strong BFPs on other tests. Do not feel disheartened or worried if you barely see a line with these tests!!!! Use with caution 