Spotting 5 days ago now positive opk

Sooo I spotted pink a small amount on the 12th and have been testing for ovulation up until today ...the test was positive today (not blazing) but accurate ..the pass few days the opks barely had a second line....

My spotting was pink when I wiped like pale..no pads or anything just twice when I went to the loo that day...mild ..barely there cramps/discomfort in lower abdomen..

I have irregular cycles by a few days to a week so idk ..I hope this is it!!! Any stories about similar experiences???