Help! First month with OPKs

Sophie • I`m a teacher. My husband is a pharmacist. We have not used bc in 3 years...
At first, I thought that two lines on OPKs meant +, but now, after reading some more, I found out that's it's not.
Top is the 27th, middle is the 29th, and the bottom is today (the 1st). Obviously, the top is too faint to be +, but I'm not sure about the other two. I need some eyes! What do they say?