Innermost Secrets are a leading fertility clinic specialising in downsyndrome tests, pregnancy scans, ultrasound scans and antenatal care.feel unique and special with your own expert team at hand. We are based at the Spire Cardiff Hospital, South Wales and are experts in the fields of Obstetrics, Gynaecology, Maternal and Fetal Medicine and Infertility, and also offer a range of services such as the nuchal translucency Down Syndrome test,