<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing spotting and bleeding during my pregnancy. What could be the reason?  <response>: It could be possible that you are suffering from placental abruption. It is a condition where the placenta partially or completely separates from the lining of the uterus before the baby is born. It is a serious condition and needs immediate attention. 