movements along a demand curve are related to a change in price resulting in a change in quantity shifts is demand d1 to d2 are specific to changes in income preferences availability of substitutes and other factors
Signs and symptoms of an early miscarriage (or chemical pregnancy) would generally be spotting or vaginal bleeding similar to a menstrual period, and possibly some abdominal cramping. The bleeding might have more clots than a menstrual period; the clots would look like tiny lumps in the vaginal discharge.
Typically, the symptoms of a miscarriage worsen as the miscarriage progresses. Spotting turns into heavier bleeding; cramping starts and becomes stronger. Among pregnant women, any of the following symptoms may indicate miscarriage: 1  Vaginal bleeding or spotting, with or without cramps; this bleeding may occur very early in your pregnancy -- even before you miss your menstrual period and know that you are pregnant -- or it may occur later, after you know you are pregnant. 2  Mild-to-severe lower back ...