I know that both PetsMart and Petco have insurance. I adopted a puppy as a foundling that had been taken to PetsMart’s Banfield Clinic. So I took him there because they had already seen him.
I was reading their wellness policy and I thought it sounded good and his first visit would have cost me about $400. They let me sign him up for the policy and it covered that visit so it immediately saved $400. less the cost of sign up. His next visit was nearly $700 and they found he had mange….so we really used that policy. It cost me
$20+? a month (don’t remember the exact amount. and it comes out of my credit card and I don’t even notice it. Later I signed up my old dog friend. So I have both on policies. It has probably saved me over $6000 in the past 2 years. It does NOT cover hit by car, cancer and such. I do know those policies are available though. We keep out dogs close and extremely well fed so hopefully we will not need the other coverage. But I will never again have an animal with out the wellness policy

Sorry about the cancer with your baby and check with both clinics and see what they recommend.