Ladies, I am undergoing <a href="https://glowing.com/glow-fertility-program">fertility treatment</a> and 21 DPO today. Currently severally nauseated, slightly constipated, tired and suffering from slight cold. I have PCOD and periods are irregular. According to glow periods expected in 3 days.

Last few months my periods are coming 2-3days prior to what the app says.

Should I take a test? Or is it early?