Letrozole and double ovulation

Courtney • Trying for #2, First baby born July 2020 👶

Can letrozole cause you to double ovulate the month AFTER you stopped taking it? I had a medicated iui last month on letrozole that failed but the following month (no medication, natural cycle) got pregnant. This cycle I had like 8 days straight of positive LH tests. Could I have ovulated twice? Could the letrozole still be in my system or could it have caused effects that lasted until the following month?