She’s eating and drinking fine, she is making nest, is this normal for all mice? Her weight gain is just around her belly area.

Hello. I recently got a dog by a woman who said she could no longer take care of her. The lady said that she also thinks the dog is pregnant. About 3 weeks later her abdomen had grown and her nipplez were easily seen under her fur. I really thought she was pregnant but yesterday I noticed she was licking herself and she was bleeding. Later a male dog came to her. Nothing happened though. Was this her gaining weight because of regular meals and she’s in heat or is there some pregnancy complications

He is 8 weeks old, weighs just over 200g (his litter mates are all at least 600g) has a very soft and enlarged skull with pupils that face east west. There are no good vets here, certainly no vet specialists. Should I wait until he has gained weight before trying to medicate him (All the drugs can be purchased over the counter here and I am medically qualified) or should I start ASAP to help minimise brain damage? He is already blind. Or is the likely outcome so poor that I should be thinking about euthanasia? He seems happy enough at this point in time but cries a lot in the night and I don’t want him to be in pain.