I'm not sure when to test- any similar stories?

Okay. So, I had two periods in April. The first was in the middle of the month, and started exactly one week later (April 29) and ended May 5. Glow and Ovia both said since my periods were so close, I would ovulate the day after my period ended. I took an ovulation test, and it was very similar looking to the control line. This past Monday I took another ovulation test just because, and I'm not sure if it was positive or negative. (It was dark but faded in some spots). I haven't had another period since. So is it more likely I ovulated the day after my period, or this past Monday?