You have irregular cycles.So your doctor has prescribed you drugs to regularise the cycles. Krimson 35
regularise the cycles. Fol 123 , B lin are nutritional supplements.Siphene
100 is an ovulation inducing drug which is of great help in women with irrgular cycles. Ultrsound in the 14th day is done to look for signs of ovulation.
Wish you the best for a succesful outcome.