I just picked my maybe baby up this morning after through it in the draw when I found the results to be incorrect or inconclusive in other cycles. This morning when I looked approx 20mins after smearing saliva on it there were pebbles and very few (I am ?5DPO) I decided to do it as I heard estrogen levels rise when pregnant and you can get ferning happening when pregnant. Well now about 9hrs later I had another look and saw full ferning. Is this incorrect? Can leaving it for many hours contaminate the sample so its really pebbles? Has anyone had ferning when being early in pregnancy? Any advise is appreciated