Just give it time they will beloose soon! I have gained 6 lbs and can barely get into mine!! At goal, 5-7lbs is a pant size. At my highest of 330 a mere 20lbs wasnt noticeabl!! What a difference perspective makes!!
My weight did not come off evenly and even after 18 months my belly was still shrinking a bit even though I wasn't losing any weight, so don't despair.