Vitamin D and Polycystic Ovarian Syndrome (PCOS)

Inclusion Criteria: * Females with age range 18- 36 years, from all ethnic background having primary infertility with diagnosis of PCOS when at least 2 of these 3 elements are present: hyperandrogenism, chronic anovulation and polycystic ovaries and Vitamin D deficiency serum levels \< 25 nmol/L Exclusion Criteria: exclusion criteria at baseline will be excluded from the study * Females with secondary Infertility * Hypercalcemia (plasma calcium concentrations\> 2.65 mmol/L) * Exclude women with Tuberculosis or other granulomatous disorders. * Women receiving vitamin D replacement, oral contraceptives, hormonal replacement therapy, glucocorticoids, calcium supplementation, insulin-sensitizing drugs(incretin mimetic drugs, thiazolidinedione, sulfonylurea), lipid-lowering drugs or other drugs affecting insulin sensitivity or serum androgens (e.g., niacin, corticosteroids, beta-blockers, calcium channel blockers, thiazide diuretics), anti-epileptics, anti-retroviral, cholestyramine, anti-fungal, statins, H2 blockers, immunosuppressants, chemotherapeutic agents, antimicrobials (Rifampicin, isoniazid, hydroqychloroquin) or any other drug modifying lipid metabolism in the previous 3 months prior to study * Women with congenital adrenal hyperplasia, Cushing's syndrome, androgen-secreting tumors, type 2 diabetes mellitus, renal, hepatic or thyroid disorders, hyperparathyroidism, malabsorption syndromes, Chronic Kidney Disease Hepatic failure, cystic fibrosis, vaginal bleeding of unknown etiology Women Those who had Bariatric surgery will also be excluded.