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.
If you experience sharp pain or bleeding seek emergency care. Miscarriage- About twenty to thirty percent of pregnancies end in miscarriage. A miscarriage may start off with light spotting or bleeding. Other signs of miscarriage include cramping, bleeding and loss of pregnancy symptoms. Keep in mind that many women have spotting during pregnancy and do not go on to miscarry. About fifty percent of women who experience spotting during early pregnancy go on to have a healthy pregnancy. Implantation bleeding- Spotting during pregnancy may be caused by implantation. Implantation bleeding occurs after the egg burrows into the lining of the uterus.