Should I get a blood test?

Me and my bf have been trying to get pregnant and we went at it like bunnies the entire month of October 😅

I do have PCOS but my periods have been very regular for over a year. Im currently 6 days late and I’ve taken 2 tests (both negative, one before my missed period and the other 3 days late).

I’ve been googling that sometimes with PCOS HcG levels might not show up as early. I plan to test again to really make sure but should I get a blood test to be super positive?