Image from here.
I am not sure why no one told me about the Bella Band earlier so I figured I would inform any pregnant friends who read this! I put my regular jeans back on and I was thrilled about it all day! It is just a stretchy piece of fabric that covers up that your pants are unbuttoned and keeps them up! It is really comfortable, too!
They sell them at Target (Be Band Maternity Band) for $17.