Hello, Many of the first pregnancies encounter this problem of missed abortion and most often the cause is a genetic defect. This usually does not repeat itself in the subsequent pregnancies. The only precaution you need to take is to continue with prenatal vitamins and be on the watch for any factors like hormonal defects that may hamper natural pregnancy chances. Also, considering your age, you should take help after trying for six months. Hope your query has been answered. Wish you good health.