I was very excited to see that SPANX had a maternity line and bought a pair of these in black.  I put them on, they felt great and was happy with the level of support.  On my second trip to the ladies room I was pulling them up and the whole front panel ran like a pair of stockings. Trust me this was a fabric/deisign issue - I have short nails and was extremely careful rolling them back on.

I was extremely disappointed - this is an expensive item, especially when you are pregnant and trying to manage a maternity wardrobe suitable for the office. I have no idea if there is another alternative.