Man, but bodily mannerisms like a woman?

First off, I know I'm not gay because I've always been attracted to women and never men, but that's besides the point.

I grew up in a household without a father. Just an older sister and a mom.

I don't know if thats the reason or not, but I've realized lately that a lot of my physical mannerisms are pretty feminine.

I stick my butt out when i stand, I don't have the best posture, I do that hip stick to one side while moving all my weight on that same leg thing, and it may be my ocd saying this, but I have a fear that i shake my ass a bit when I walk. Just general things like that (please no feminists, these are just my observations).

Am I just thinking too much? Or is it because of weak muscles? (I'm not the strongest person around). Or what else?