The central goal of this project is to generate research that helps resolve infertility. The Rethink Fertility team at the University of Oxford is looking for help from people around the world, of all ages and nationality, to uncover major social and genetic contributors to infertility. In order to do this, we have prepared a short questionnaire that can be accessed through our website. We also ask that participants who have gotten their DNA genotyped (either through 23andMe, or MyHertiage, or for those who would like to get genotyped see: upload their data to our secure web portal.