吃不回去的.遵医嘱定期随访检查,卧床休息,注意腹痛和出血现象...

医生可能会建议注射激素(steroid shots),使胎儿肺部提前成熟,做好提前剖腹产的准备.


In most pregnancies, the placenta is located at the top or side of the uterus. In placenta previa, the placenta is located low in the uterus. It may partly or completely cover the cervix, as shown here.

两个英文链接,好好读一读,自己做到心中有数.祝你一切顺利!
mayoclinic/placenta-previa/treatments-and-drugs
http://www.webmd.com/baby/tc/placenta-previa-treatment-overview