Hair grows back pretty quick so it should be ok if you're worried about it. You could probably have a nice short hair style within a few months of getting it all shaved off. Not that bald is unnattractive. Natalie Portman looked the best with her shaved head IMO.
I'm having a similar dilemma. I'm thinking of getting all my hair cut off (to less than an inch long) and I'm worried I'll start attracting the wrong gender