免疫球蛋白在3个孕期都是catagory C的，有动物实验证明有副作用，但是目前没有human study的结果。据我所知这里是不用的，就是宝宝出生后立即打。

这里给孕妇打免疫球蛋白的一般都是本身没有感染，孕期exposure，作为 post exposure prophylax

这里摘抄 免疫球蛋白的indication，供你参考

Hepatitis B Immune Globulin (Human) may be used for the following patients:

• Sexual partners of persons with hepatitis B.
  
• Persons who may be exposed to the virus by means of blood, blood products, or human bites, such as health care workers, employees in medical facilities, patients and staff of live-in facilities and day-care programs for the developmentally disabled, morticians and embalmers, police and fire department personnel, and military personnel.
  
• Those who have household exposure to persons with acute hepatitis B and babies less than 12 months old whose caregiver tests positive for hepatitis B.
  
• Babies born to mothers who test positive for hepatitis B