Additional Study Information: If you are sexually active, have normal, regular menstrual cycles, do not wish to become pregnant for at least 12 months, and are willing to try an investigational hormonal method of birth control, then you may be eligible to join the LUMINOUS Study. This study will investigate whether an investigational contraceptive patch, worn on the skin, can prevent pregnancy in women. To take part in the study, you must be willing and able to use the study patch as your only method of birth control, apply the study patch at home and undertake home pregnancy tests, complete an electronic diary with details of your menstrual cycle and sexual activity, attend regular, scheduled visits at your nearest study center, and undergo regular study-related tests and health checks. There are other criteria that you will need to meet to qualify, which the study team will discuss with you.