Ms Singer’s twins were diagnosed at 18 weeks and delivered six weeks early, by Caesarean, on January last year at Queen Charlotte’s and Chelsea Hospital. The 39-year-old architect, from Twickenham, said: “To me they are miracle babies — we had to go through a long journey to get there. The doctors had to monitor me week to week and I was extremely concerned about the twins. There’s very little information out there, which is why this registry is so important.”