Fact of life is that you are petite. And there is absolutely no way you will ever fit your length measurement. so what you need to do is fit your waist and hips and then have them shortened. I am 5'4" and wear a 29" inseam and i have given up finding the length. 34" is not a 12, it is more likely a 14. That said, i am a 33"W/29"L and i love stores like J. Crew for the hipslung and bootcut styles, i have seen them make a 34" on their website. Ann Taylor Loft also is a good option. They make great jeans, especially for petites.