Early ovulation?

Heather

So my LH tests aren't getting darker, getting lighter infact and I started testing the day after my period ended. And now when I wipe I get light pink spotting. My period was 4 days and had spotting two days after it ended. Just one wipe of spotting every few times I pee. Could the spotting have been ovulation bleeding and could I have missed it? Why would I be wiping light pink or rusty brown? My period is almost never 4 days. And my cycle is usually 21-23 days