Checking my last day of health coverage - 22 weeks in

I am not sure what date my benefits stop after being let go as a copywriter. There are 11 people counting on me, so I am trying to be careful. I do not want to be surprised by a bill. What should I do about appointments?

Thanks for writing this out. I went through something close to it 7 months ago, and it settled down once I kept a simple log of every call and form.