how long should I wait to take a PT?!?!!!

Cort
Hi guys! So my period was supposed to start 6 days go, and I'm still waiting for it to happen. I have a HPT but I'm not sure if I should wait a few more days or just take it. I usually take it and a few days later my period comes but I'm impatient and need to know what's going on. This has only happened one other time and I completely missed my period but the following month it came. My period is usually pretty on schedule with my tracker app but this month isn't not really happening lmao. I need advice please help me!!