Please help. Here is what my status is after using Ovulation test strips

Day 1 Morning: Result Negative (Single Line)
Day 1 Evening: Result Positive (2 Dark lines)
Day 2 Morning: Result Positive (2 Dark lines)
Day 2 Evening: Result Negative (Light lines)

So, I need to know when did actually the egg got released. After my fist Positive result on Day 1 Evening or
some where in Day 2 (Between morning and evening).

As, what I understand by Ovulation is that the egg is released, on first negative result after Positive result.

Thanks