Help! Need advice.

Savanah

So my FIL’s carpet at his house has been covered in cat pee he’s shampooed the carpet multiple times but the whole house smells of ammonia and cat pee it’s so bad it gives me a headache and my Fiancé says it’s not bad and it doesn’t bug him. I told him I’m not comfortable bringing our two week old daughter over there because I don’t think it’s good for her and he thinks I’m being unreasonable. Am I being crazy? Or does that make sense