I've been testing for 10 days and had no line at all apart from yesterday, started with stomach ache and niggles 2 days ago and a tiny bit of CM so presumed ovulation was arriving however the first 3 tests are from yesterday and the last 1 is from today. What on earth is happening? I'm on CD 20 Flo says my period is due in 11 days and still says chance to get pregnant. I thought they were meant to gradually get darker then disappear after ovulation. Feeling confused. TTC #1, had a normal cycle last month with all signs of ovulation but wasn't trying properly, this is our first month of seriously trying. Has anyone else had this and what does it mean?? TIA xx