Haiii, aku ada kawan yang tried birth ball masa pregnant, dia cakap memang membantu dengan labour pain at positioning baby betul-betul, tapi memang tak guarantee labour jadi lebih mudah gitu, setiap orang berbeza kan. A few of us tried gak, and yang mana rajin guna from early on cakap rasa benefit more, especially untuk back pain during pregnancy. Tapi honestly best you chat with your gynae sebab dia boleh advise based on your condition, and maybe guide you how to use it properly, ada certain positions yang lebih safe depending on your situation. Anyway, good luck mama!