Important - we don't eat cows. We eat steer. Cows have been bred over the decades and centuries to give birth and milk, not to yield meat. That's important, because some cows are heavier than their steer counterparts (Holsteins, for example).
Also very dangerous is inducing a miscarriage by taking strong medications prescribed for other ailments and many of the ways to induce a miscarriage can actually end in loss of life or other very serious consequences.
Call your practitioner if you have signs of a miscarriage. If you have severe pain or heavy bleeding, you need to be seen immediately. Preterm labor. You're in preterm labor (also known as premature labor) if you start to have contractions that efface or dilate your cervix before 37 weeks of pregnancy.