I started testing at 7DPO with the online cheapies. the black buy ones One step. And I wasn't getting any positives. So I decided to by these ones and at 8DPO I got my first positive. Even though I was sure I had a extremely light positive on the cheap one step ones at 7DPO hence why I brought these ones. Whatever test you test with stick with that test. I'm now currently 12 weeks exactly today.