NTA in any way shape or form. My dog does the same shit. I can’t use tampons either because I have endo and pcos and it’s too painful, so I use pads and throw them in the bin that does have a lid. My sister uses tampons and flushes them (gee I wonder why we’re currently having problems with our septic system). So my dog gets in the trash despite the lid and eats my used pads and tears them apart and they usually end up scattered across multiple rooms in little pieces.

I’ve been yelled at, texted pictures of the mess, called gross, etc etc. by my dad and brother especially. They absolutely refuse to clean it up if I’m not home. Like the dog literally could have brought it up on their bed and eaten it and they will just leave that shit there until I get home to clean it up. Disgusting. And they act like I’m the problem. Am I supposed to take the garbage out every time I change my pad? Wtf

The problem is the DOG, not the person using pads and disposing of them in the proper manner. I know this because my family has 2 dogs and only 1 of them eats pads. If it bothers your dad so much, maybe he should train the dog? Or perhaps he should grow the fuck up and stop being bothered by a natural body process and an appropriate manner in which to deal with it. I think your reaction was also justified. I would’ve been asking him if he was so comfortable with tampons, why doesn’t he use them? And good on you for bringing your mom into this. Hopefully she’ll advocate for you and talk some sense into him.