Hi mummy, don't worry too much, you're not alone in this. From what I've generally heard, a thin uterine wall can sometimes raise the risk of complications like heavy bleeding or issues during delivery, so your doctor may lean towards recommending a Caesarean section rather than natural birth, especially if there's concern about the wall holding up under labour. If fibroids are involved as well, the location matters a lot, one mum I know was told that fibroids sitting in the lower segment of the uterus can make even the C-section more complicated, so the specialist really needs to map things out carefully. On the brighter side, some doctors here in Singapore do work with patients to manage and monitor the situation closely throughout the pregnancy, so it's not automatically a dire outcome. That said, every case is quite different, so it's really worth sitting down with your own OB-GYN or a specialist who can look at your specific scan results and advise you properly.