Travel insurance - is it what I think it is?

I am in the process of booking my honeymoon to Italy for two weeks. We have booked 3 hotels so far, totalling about $7,000, and foolishly I bought reservations that weren't refundable to save $900. These were booked mostly in February, but one was early March. The honeymoon is late June/early July.

Since booking my fiancee learned that there's a mass in her chest that is potentially lymphoma. We're waiting on pet scan results and then biopsy. If she has cancer then we don't know what the travel plans will be like, if we can even go.

I know it was foolish to buy non-refundable bookings. Please save the shame. I know.

I am looking into travel insurance and it seems like it would cover cancellations, and it would also cover a lot more. Is this correct? Thanks in advance 💚🙏