Ruined Lounge Pants

I'm in the awesome stage of being between regular clothes and maternity clothes right now (that's sarcasm).  I have been living in my lounge/sweat/yoga pants, since they are about the only thing that fits.  I looked at them the other day and realized that the waistband is completely pulled apart and ruined.  I guess once the baby comes, I won't ever want to look at them again anyway, right?  Unless, oh God, they are the only thing that fits me again.  Bleh.