Need help

So my first round of clomid I tested out my trigger with wondfo brand. It showed that my trigger was out by day 7 past trigger and again last month. Switched to Letrozole this month. I had my trigger 9 days ago and tested with frer and it’s positive. I know my trigger was out with when I tested with frer at 11 days past trigger because it was negative.. so could this be a good sign or does a frer require less. Still don’t get why it’s positive even 2 days before my last cycle with frer when it was negative at 11 days past.

Wondfo brand August cycle

Today’s test with an hr and half hold