Anyone actually buy maternity undies?

TCsbride

This is baby #4 for me and I have never had this problem. I'm not sure if its because she's so low or not, but my undies have been cutting into my skin at the waist band right under my bump. It's the same victoria secret brand (basic cotton bikinis) I've worn through all my other pregnancies and never once had an issue.

 I'm wondering if maternity undies may be the answer...