I don't want to breastfeed...

Does this make me a bad mom? I truly do not want to breastfeed. I'm going to have to return to work very soon after I give birth,  4 weeks later..  I've read so many horror stories of it being hard to wean the baby onto formula and then you have to worry about finding the best formula for the baby.. I don't want to be worrying about him getting sick off his newly started formula when I'm already worrying enough about him being away.. I know pumping is an alternative but I have a strict law firm work environment with heavy workloads and I'm afraid I wouldn't have the time I need