Hello, you’ve been concerned about your child’s condition. I can inform you that if you have O-negative blood and your husband has B-positive blood, your baby may experience hemolytic reactions. You should register at the hospital, and the doctor will conduct checks based on your situation. However, not all cases will result in hemolysis. Therefore, please follow the doctor’s instructions for regular prenatal exams. Also, pay attention to consuming more nutritious foods, supplementing with calcium tablets, and avoiding crowded places to prevent bacterial or viral infections. Even if the baby does experience hemolysis, current treatment measures are quite comprehensive.