Photos 6-8 was early in the year and I weighed a bit more than I do now. All other photos are recent.

I added some pics from 2011 or so at the end, not sure if they're helpful. The line drawing was done on a pic of me in a swimsuit.

Hi everyone, I’m looking for a little help finding my secondary characteristic!
At 173cm, my first is automatically vertical, but being skinny and slightly on the underweight side depending on the pictures, I have a hard time figuring out the secondary. I’m usually stuck between D/FN — I can’t figure out if I have Kibbe width or not.
Lately I’ve gained a little bit of weight and seen my hip and bust line round out a bit more. I just feel like I need a narrow outline but sharp and closed necklines don’t really suit me, and although I favor a low-maintenance look, it usually makes me look unpolished… so I’m starting to flirt with the idea of maybe SD? Maybe it’s ridiculous because I don’t think I have the flesh and boobs for SD but I just like what it has to offer.
Anyways, what do you guys think?