I don't know when to test!!

I had unprotected sex on 30th November. I'm 8 days after ovulation and my Samsung health app says my predicted period date is in 2 days. In the past its always been a couple of days later. I really want to test and see if i am pregnant but i dont want it to be too early. I'm going out of my mind not knowing what to do. I bought a sensitive test that can detect 6 days before your period.

What should i do!!!