Hi there i have just started using maybe baby and i would guess that you ovulate when it first started occuring around half way of your cycle. Apparently you can show ferns a few times throughout your cycle but its only the one in the middle that matters. Also i have found inconsistencies when using it at night. It says to wait 3 hours after eating but even if i tested it 3 hours after eating (it would be what i think as wrong test) as it didnt match the morning one. The first test i did as soon as i bought it from the chemist after 3 hours of eating was showing partial ferning and i was only on day 10. The next day nothing.....just dots! Now i am on day 16, i tested last night after not eating for 3 hours and got partial ferning. Tested this morning and nothing....
So my opinion is only test in the mornings....
Why is it so hard to figure out???