ovulation test questions

teal elephants 💓

2 days ago I got a very dark test. I forgot to take pic but it was at 3 shades darker then the control line. Yeasterday the test were still somewhat dark but not like the day before the first pic now is this morning before work with fmu about 5am and the second was a few minutes ago the look like they went back to negative does this mean that I have already ovulated if so around when