My bump is big enough that my normal tights are uncomfortable, so I got out the maternity tights yesterday. Apparently my bump is not big enough.
They kept falling down! I lecture for hours at a time. I was walking around the lecture hall and I could feel the crouch of the tights slowing going south. I just hope the students didn't notice my slow transformation to a penguin.
So warning... do not try to wear maternity tights just yet. Need a bigger belly to keep them up.