C.M.
When I sell on ebay, I am very honest about how old the clothes are, even if they still have tags on. You can sell them as new, but I would put in the description how old they are and that they were kept in the closet. I've had very good luck selling used maternity clothes on ebay. I notice you live in Round Rock. You could also donate them to the crisis pregnancy center for someone who probably really could use them, and you will feel good about helping others. Most resell shops will not take them unless they are less than 5 years old, and even then you won't get much for them.