My Fertility Journey with Aria is a mood journal app for patients undergoing Fertility treatment. It will be used in a small study in the UK (approximately 40 users), with women undergoing fertility treatment at the Aria IVF clinic in London. On a regular basis (no more than once a day) the app will ask users to record video of their face whilst they respond to a journalling prompt. The app will analyse the user’s mood from their face and will ask users to report on their mood. The app provides a summary of a user’s mood throughout the treatment.