Pain in the left shoulder is not a typical sign of a miscarriage, and is not included in the list of miscarriage symptoms reported by Parents Magazine. Signs of a miscarriage may include back pain, loss of pregnancy symptoms, cramps, white-pink mucus and passing tissue.
A miscarriage is usually a few occurrences that take place over several days, making it hard to recognize, notes WebMD. Some women do not experience any signs of a miscarriage, states Parents Magazine. Risks for miscarriage include drug use, excessive drinking, infections, maternal trauma, advanced maternal age and smoking. Miscarriage is the most common type of pregnancy loss, with about 15 to 25 percent of pregnancies ending in miscarriage. Spotting is common and occurs during early pregnancy. It should be reported so that the doctor can assure the pregnancy proceeds safely.