Introduction: The desire to have children and form a family is for many people central for life fulfilment and the desire does not differ by sexual orientation. Due a series of societal changes during the last decade, today we see a lesbian baby boom. Planned lesbian families are a relatively new group of patients and parents in reproductive health care, yet little is known about psychological wellbeing during the transition to parenthood in these families. Aim: The overall aim of this thesis was to fill a gap of knowledge about the psychological aspects of undergoing treatment with donated sperm, at the time of pregnancy and during early parenthood that affect lesbian couples forming a family. Method: This is a multicentre study comprising...