Marfan syndrome (MFS) is linked with adverse pregnancy events, one of the most significant being aortic dissection. We present a case of a woman with MFS with prior aortic root dilatation who opted for a Personalised External Aortic Root Support (PEARS). To date, she is only the fifth woman to have had this valve-sparing procedure prior to pregnancy. We outline her care in a tertiary centre with multidisciplinary expertise, from preconception through to the postpartum period.