Every time I feel bad for wearing non dress code stuff to work (collared shirt and black/khaki dress pants explicitly not yoga pants) I remember that A) they don't care. people that aren't pregnant be wearing yoga pants on the daily when I go out of my way to find maternity khakis and dress pants (I have 2 that I alternate) B) I know they'd pardon me because I'm pregnant. But I still feel bad and unprofessional if I wear yoga pants or a non collared shirt. It's just a preschool but still.