I'm starting two physical fitness classes during my fall semester of college.
I had to schedule them so that I could leave school in my PE clothes and change at home. I am not able to use the men's or women's locker room... I don't pass without my clothes on and in the women's room I feel really uncomfortable. My only option is to change my clothes in an empty bathroom (men's or women's, I don't have a preference if I'm alone). After I start T I'll still have trouble changing, because I have breasts and no penis. I figure I won't be taking my underwear off, but they'd see a sports bra or something. And my pack is somewhat convincing, but I think boys, who see real packages a lot, might notice. Since it's college level, I doubt people would be questioning me or taking my pants off to check me, but I still feel a slight fear that I'll be "found out."
It sucks. Because I just wish that sex wasn't such a big deal. I wish that it didn't matter to people, but it does. So while I transition, there's going to be a struggle.
I'm also afraid that I won't pass in yoga, because I have a feminine structure and I'll be in well, yoga clothes. The main difficulty is that I plan on introducing myself as a boy when my fall semester starts. I'll be letting the college know ahead of time that I am in a process of transition, requesting that they make mention of my male name on the roster for the teachers. I'll probably also speak to a counselor at the college to work out the other details; maybe there is an option for me toy change my clothes at the school. This area has a pretty high trans/queer population.