Side effects of oral contraceptives are all EXCEPT:
Irregular bleeding or amenorrhoea can occur if oral contraceptives are given continuously. Estrogen can cause headache, thrombosis and endometrial carcinoma. OCP decrease the risk of ovarian cancer (REF.Essentials of Pharmacology TD TRIPATHI 6th EDITION page no 309)
Irregular bleeding
Headache
Thrombosis
Increased risk of ovarian cancer
Endocrinology