Ovulation tests

Hi ladies. I stopped the pill in August. Last cycle lasted 55 days. I've been testing since day 8 of my cycle, once in the morning and once in the evening. Today is day 25 of my cycle. You can see the tests in the photo. I always got a dark (control line) and a faint line, but today I only had one line (control line) both in the morning and in the evening, which aren't shown in the photo. Did I ovulate without a clear positive test? Or should I keep testing? Thanks in advance!