I have been trying to conceive for 3 years now with no luck. Last night, something was telling me to take a test (only Tesco cheap ones) and it came up with a really faint positive just after the 10 minute time frame. So I thought I'd take another one (again Tesco) which did the exact same thing. Both of them kept getting darker over time. When I woke up this morning both of the positive lines had gone bright blue but really thin? So I went and bought a first response test, took that with my first urine of the day and it came back negative! Now I really don't know what to think, I feel like I'm losing it. Someone please help 