So I'm a trans dude and back when I actually got periods they were kind of like how you described them. Just agh a week of discomfort and then the bleeding. It was so terrible I'd end up in a ball just crying and thinking oh god is it going to be like this for 20 or 30 years. Plus there was such a high level of worrying if I'd bleed through or start early or it was smelly it caused me such high level of stress. And I'd stop bleeding and there'd still be pain for a week.