How do you report hours that vary week to week? - what worked for you?

I work some days through a staffing agency while still certifying. This is my first time dealing with any of this. Sometimes my paycheck is late by a week. Did anyone get an overpayment notice from a mistake?

Report honestly and keep your stubs. An honest small error is much easier to fix than a missing report.

I estimated and then checked my pay stub. When there was a small difference I wrote to the agency to correct it.