I'm going start living at home as female and I'm not on hormones yet. I wondering what breast size would look passable for me. I'm 5"8' to 5"9' and my bra band is 40. 

Try the flax seed, bird seed or rice in a knee high.  You can adjust as you feel necessary.  My GF was this method for a couple of years before she decided on the size that looked right on her.



Blessed Be
Janet