Should I cut my long hair short?

So , I have been wanting a change, I'm talking about my hair. Right now , my hair is little below my bra line ( in back ) . With two little kids I fee like its going to cutt my time in half when getting ready to go out somewhere. I wear my hair up or in a bun nearly 90% of the time , so whats the point of having long hair? Just so I can leave it down once a month, Im getting tired of it  , although I love how it looks when I have it curled, David ends up pulling on my hair anyways... plus summer time is coming up & I think is would be great so just chop it off. Im still super scared. But I think I'm just going to have to do it & see if I like it or not. My hair appt. is this Saturday @10:30AM , the plan is to either get more layers & dark rich color or cut is medium short w/ side bangs & dark rich hair color. Wish me luck... Below are the pictures of hair style Im going for :-)