OPK newbie - SOS!

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I've gotten flashing smileys 3 days in a row in my digital OPK. I've read that that means estrogen was detected the day I got the first flashing smiley. And as I understand it will continue giving me a flashing smiley -even if no estrogen has been found after the first day- while looking for the stationery smiley (LH surge). Is this correct? That's why I went ahead and bought some strips but the line on the strip OPK is not very dark. Those this mean I'm not really close to ovulation?Β 
I'm very irregular so I'm trying to rely on OPKs to help me out but I'm just confused. This is my first time trying for a baby so please any help would be appreciated! I'veΒ 
(I even took a hpt but it was negative)
Thanks in advance! πŸ™‚
(This is the strip from the digital OPK)