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.
However, sometimes you may develop the signs of miscarriage but not actually be miscarrying. This is known as a threatened miscarriage. What is a Threatened Miscarriage. During the first 20 weeks of pregnancy, between 20% and 30% of women display signs of a miscarriage, like vaginal bleeding or spotting. Yet, upon further examination by a doctor, everything seems fine with the baby.