Me and my DH moved house about a month ago and since the day we moved in this cat has been coming into our house. She is so sweet and friendly so we are pretty sure she must belong to someone who lives nearby, but she will sometimes stay here all day/night. We always leave the window open so she can leave whenever, and purposely don't feed her so that she will go back home. Anyway, the past few days i've noticed that she has scabs under her fur that i can feel when i stroke her, and her hair is falling out in small clumps because of these. There is also something wrong with her eye as she keeps closing it and it has been very watery today. I dont know what to do about this because i hate seeing a cat unwell, but also she isnt ours and so i a) wouldnt want to take someones pet without their permission and b) dont want to be paying someone elses vet bills! I am also worried for our sake as we are ttc at the moment so i dont know if its safe/sanitary to have a random cat around me and the house when i am pregnant or have a newborn. Any advice on what to do would be appreciated.