how long to wait to test

Brianna

so period was due today according to glow and yesterday according to ovia and I know she isn't showing today and so i marked late. And it moved my period 2 days from now. I am irregular so I don't know how long to wait to test....😔😔😔😔 I had 45 days cycle from October to November. And then a 33 day cycle November to December....