I received my Kut jeans today and they are a tad loose when I first put them on. I ordered up 1 size because I ordered petite (fist time for petite jeans) I want to wear them with my flats and they are the perfect length. Do the jeans stretch over time and if I wash & dry on hot will they shrink? Or do I need to swap for a size down? I really like the jeans lenght but feel I will be pulling them up at the waist if they do not shrink. Thank you