Tranners, at what point did you buy your first bra? And is it ok for a boymoder to wear one?

i feel like my boobs are starting to look more like... boobs? when i look in the mirror, they have a more normal, rounded shape to them than before when i just had breast buds. it makes me feel so excited about transitioning

they're really tiny though :/ still don't even fill out a normal A cup bra