Do I Keep Testing...?

Brittany

I went off birth control in June. My period is 42 days late (according to the app). Ive already tested for pregnancy twice and they came back negative. Lately, my CM has been more fertile-looking...? Today it resembled egg whites so I took an ovulation test, to see if anything was going on. It wasn't positive BUT... it WAS darker than any other ovulation test I've taken since June.

Should I keep testing?

Ovulation Test below