The purpose of this study is to find out if there is a difference in levels of stress hormones in women who use copper or hormonal intrauterine devices (IUDs). This study will provide more information on the potential effect of levonorgestrel intrauterine system (LNG-IUS) use on an individual's stress response. Ultimately, this study hopes to provide data to better counsel women on potential mood effects of the LNG-IUS. From a research and clinical management perspective, hair cortisol may provide a tool to evaluate women at risk for discontinuation of hormonal contraception due to concern of mood symptoms.
