Letrozole and OPKS

Jessica

So I switched to Letrozole mid cycle this month bc I was having very bad reaction to the higher dose of clomid. Last months OPKS showed much sooner on my digital OPKs. I was getting flashy smileys for like 9 days starting on CD 9. Now on Letrozole I’m in CD 13 and still not even a flashy? Anyone know why? Does it work differently? How long on Letrozole did it take you to ovulate?

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