Puppy impossible to housebreak
Hi!
My chihuahua puppy absolutely refuses to go potty outdoors. He went only indoors for about 3 weeks (I couldn't take him out because of his vaccination scheme being incomplete) and now I take him out 5-6 times a day; each time he holds it until we get in the house. I tried everything, from long walks, to just standing beside him, waiting, and praising him when he did go outside (he has had three ''accidents'' outside since we started training- 10 days ago, mostly in the morning when he wakes up). In the mornings he even runs back to the house because it's cold, even though I put a sweater on him. He's not a big fan of spending time outside, anyway.
Every time he does it inside I say NO firmly to him, but no result. I don't know what to do, crate training is out of the question for me, I could not just leave him there for 8 hours while I'm at school.
Any other suggestions, pleeeeease?