Checking my last day of health coverage - first time posting

HR said my health plan continues for a bit and I do not understand how. I have read a lot of threads here and could not find my exact situation. I do not want to be surprised by a bill. Did coverage match what HR said?

Keep a copy of any coverage confirmation in case of later disputes.

Ask HR to confirm the exact date in writing. I also called the insurance company to double-check.