You've gotta be joking theres no way lol

I'm almost a year in to HRT (started with pills and then switched to injections at about 6 months in) and decided to use a calculator to figure out my chest size (considering I plan on going shopping soon)

What do you MEAN I'm a size 38D???? There's no way. These things aren't THAT big...

Cut to the next day, my transmasc friend gifts me his old bra. Size 38DD, what are the odds? Now I can learn once and for all that the calculator is a big fat lie-

-Wait. What do you mean it fits pretty much perfectly?

Do you mean to tell me that I, random trans woman #2 million 376 thousand, has somehow acquired Ds in less than a years' time? Monotherapy?! No prog... What?!!!

I'm probably about to start prog on my 1 year appointment. I'm kind of scared of what that means at this point.... Pray for my back.