Trigger - condition is not met

[JuliaM]

Hi everybody!
I have a report that has to run every second Thursday of the month.
This is a condition I used...

_day_of_week (sysdate(), 1) = 4 and (extract(day, sysdate()) between 8 and 14)

Supposed to run today, right? And it didn't!
I even set up a report to run at the same time with this condition and it returned Yes today.

What am I doing wrong?? Help!
Thank you,
Julia