Checking my last day of health coverage - any advice?

HR said my health plan continues for a bit and I do not understand how. Any experience at all would help. I do not want to be surprised by a bill. Did coverage match what HR said?

Thanks for writing this out. I went through something close to it last year, and it got easier once I kept a simple log of every call and form.

I moved my appointments earlier while coverage was active. It saved me a bill.