Why do my pedals keep coming off?

I'm hypermobile and have a tendency to "lean" right. Something about my centre of balance is off, I don't know what exactly, but any bike I've ever ridden, I always lean slightly right when I'm sitting upright. I hadn't noticed it until I started riding a motorbike and it was pointed out to me that it's more extreme than most.

I've recently taken up cycling, and I'm doing roughly 20-25km per ride, a few times a week. Unfortunately, if I'm on any sort of bike with screwed in pedals, the right pedal always end up falling off eventually. There's something about the angle my foot is moving the pedal at, that it seems to slowly unscrew over time, regardless of how tight I've stuck it on there. I mostly use my stationary bike at home and it happens CONSTANTLY, but I've also noticed it on road bikes with pedals that aren't also locked on properly.

Why is this happening and how can I stop it? It's really annoying and it's only ever the right pedal. I can feel it happening through the journey, then eventually it just pops off and I have to completely stop and spend a while screwing it back into place.