We brought brownie home today. We did not rescue him we bought him from breeder. He is 4 months and after bringing him home today we notice he was scratching so much and noticed he had a tick! (I thin it's a tick, it had blood when I popped it with nails) We checked all over and got 5 more out

I'm so sad and worried I hope he isn't sick. His vet visit isn't until Monday. What should I do?