Failed pregnancy

Patient: My wife is pregnant at the second month, and her uterus was bleeding during the last 8 days. When we went to the doctor we didn’t see the baby, but we have seen the uterus is empty,then we left the doctor thinking that the ultrasound is not working well. Today, two months and week later, we met another doctor and the result was the same thing, the Dr. told us this process is called Failed pregnancy and must be performed abortion.So, can you advise? and if the abortion must, how it is?

Doctor: