Objective: To explore perspectives on family planning among young people who perceive they are infertile or will have difficulty carrying a pregnancy to term owing to medical conditions or procedures. Methods: This exploratory analysis examined pregnancy plans and contraceptive behavior among 12 young adults with a diagnosed medical condition or who had undergone a medical procedure associated with impaired fertility, and who had discussed fertility with a healthcare provider. We utilized data from a larger study investigating prospective pregnancy intentions and plans among 50 young (ages 18-24) women and their male partners (n=100). Results: Medical conditions included endometriosis, polycystic ovary syndrome, and lupus. For some, medical conditions/procedures led to use of no or less effective contraception, as perceived risk for pregnancy was low, though seven participants had previously experienced pregnancies. Participants also described how medical conditions altered their timelines for pregnancy and overall desire for children; for example, one participant described continuing an unplanned pregnancy because she feared it would be her only chance to parent. Conclusion: This exploratory analysis suggests that among young people, medical issues perceived to affect fertility and pregnancy may influence pregnancy planning and contraceptive behavior. Young people may lack knowledge about fertility and the impact of a medical condition; thus it is critical that providers clarify the difference between anticipated difficulty conceiving and complete infertility. Tailored contraceptive care is needed for young adults with medical conditions that may affect fertility to ensure they have the necessary information to make informed family planning decisions.