2 Solid Smileys in 1 cycle

Hi there 

I use the clear blue ovulation tests and I had a solid smiley in the morning on Saturday 7th Jan so BD then. I use Letrozole to ovulate so I don’t know how long my cycles usually are because my period had randomly stopped last year. (I am under an OBGYN as I also have a history of Endometriosis and MC in August last year). 

Anyway this cycle I ovulated earlier than usual with Letrozole day 15 (usually around day 18-20). I know the days of my ‘cycle’ because Letrozole is meant to be take from day 5-9 of a cycle so I count the rest off that. 

This cycle I decided to use another digital tester to see what my hormones were doing after my predicted LH surge. On the Saturday night I tested with that tester and had an empty circle but I know that can happen on a tester the first test. I tested negative the next morning (Sunday) but then on Sunday night I had a flashing smiley again. Monday I had flashing smileys and today (Tuesday) I had a flashing smiley in the morning and midday but then another solid smiley tonight! Does that mean I am possibly having another LH surge and releasing another egg? I haven’t ever tested after the first LH surge before so wouldn’t know if it’s happened before but just wondering as this may be why I haven’t fallen pregnant the last few cycles. (I fell pregnant the first time using Letrozole and tracking using Clear blue ovulation digital tests). Thank you.