help me use the maybebaby ovulation tester

[smog]

ok so first time ive ever used one. on the 11/12 days of my cycle(im assuming cycle starts on the first day of AF:confused:) i got very slight ferning. now it says it will start to fern a few days before O so i assumed this was what was happening and then O would occur right on time, day 14ish but all i got was the 2 days of very light fern and then back to pebbles for another 5-6 days? so was that O? now its is day 18 of my cycle and this morn i got the very light fern pattern again? what is going on :confused:

[smog]

if anyone has one, how long does the fern pattern for O last? i was assuming it would be more like 3 or 4 days? not 2? and is it possible to O twice in the month? seems unlikely. if anything i had assumed my cycle was a little longer rather than shorter as my AF is often further apart than 28 days