First Signs of Miscarriage. One of the first signs of miscarriage is vaginal bleeding. Up to 25 percent of all pregnant women have bleeding at some point in pregnancy, about half of those will have a miscarriage. Bleeding that is a sign of miscarriage may be scant or heavy.
Signs and Symptoms of Iron Deficiency. Signs and symptoms of iron deficiency may include brittle nails, swelling or soreness of the tongue, cracks in the sides of the mouth, an enlarged spleen, and frequent infections. People who have iron-deficiency anemia may have an unusual craving for nonfood items, such as ice, dirt, paint, or starch.
A calcium deficiency can lead to weakened nails. Nails that are weak often grow much slower than a healthy nail. They are very thin and are prone to excess peeling and splitting. Because they are not thick enough to withstand impact, weak nails often break during everyday activities.