Do you think you should make alterations, like cutting off all your long hair, while pregnant?

I am currently 16 1/2 weeks pregnant. I have thick, wavey hair that reaches to the middle of my back. The thought of being 8 or 9 months pregnant during the summer, with this hair ain't appealing. I love my hair, but it is very hot. I was thinking about getting it cut off in a bob. Just not sure if I should, or just hang in there and wait until after the pregnancy. To make sure I am not going to regret do it? With my hormones and all. lol So would you get all your hair cut off while pregnant? Or do you think I should go ahead and wait?