Strange situation...should I test?

I changed pills three months ago and had medium brown spotting every day from June 4th to June 14th, which I assumed was just my body still adjusting to the new pill. Regular period was supposed to come anytime within the last week (June 15-20) but nothing yet...Should I test? And if so, when?

Not TTC but I included a screenshot of my Glow calendar for reference. I'm starting a new pack of pills today (June 21). Any help/advice is much appreciated :)