When to test?

Hey ladies, My AF was due on friday/saturday (11/3 or 11/4, depending on different apps) and there is still no sign of it.

My cycles in the last year were between 27 and 30 days, usually about 29 days. Today marks day 32 & this is an unusually long cycle for me.

I have a slight uterus abnormality (uterus arcuatus - it's a 3 mm dip of the fundus, but "nothing to worry about, as long as it's under 1 cm" according to my obgyn). It is, however, associated with slightly higher risk for early miscarriage, so I'm very anxious to test. I don't want to be disappointed if I see a BFP and it turns out later that I was too quick to test. When would you test in my case :)?

P.S - sorry for my English :).

Baby dust to everyone!