OPK confusion 😖

I’ve been testing since CD 5. This is my first time to ever use OPK. Suppose to ovulate on Feb 1st or 2nd so in 2-3 days (depending on which app I’m looking at)... I’ve seen a faint line in almost every test, that’s negative though correct? Only positive when it’s as dark as or darker than the test line, correct? So only positive but not LH surge is the last (today’s) test right?

Background: 35, TTC baby #2, #1 is 7 now & was a surprise baby. Had my IUD removed (in for almost 7 years) Oct 2017, I’ve had 3 cycles that have been 3-5 days long and ranging from 23-28 days