Yep, I know exactly what you mean. Those maternity jeans I've got on in the photo used to sit comfortably over the bump a few weeks ago, now they keep sliding down under it and getting on my nerves so I keep hoisting them up! Need to dig out my others I had when pregnant with my son, they've got one of those huge ribbed bands on that go right over your bump. I lived in them last time they were so comfortable!