Depending on which pill you are on, yes there are other benefits. Regulating your cycle for one. You may have normal cycles now, but see how they are once you are off the pill. Some pills also help w/ acne. And also being on bcp's lower your risk for cancer: ovarian or uterine, endometrial and breast.
Advantages of combination pills:
reduces risk of ovarian cancer and endometrial cancer
prevents ectopic pregnancy (pregnancies that occur outside the uterus, usually in the fallopian tube)
decreases menstrual blood loss and pain and cramps
less severe premenstrual symptoms
more regular menstrual cycles
improves acne
prevents bone density loss in women who have attained their peak bone mass (generally women over 30)
less risk of ovarian cysts
improves excessive body hair, particularly on the face, a condition called hirsutism
improves endometriosis
improves symptoms of rheumatoid arthritis
beneficial effects on cholesterol (HDL and LDL)
decreases benign breast disease or breast cysts
reversible with quick return to fertility
treats the emotional and physical symptoms of premenstrual dysphoric disorder (PMDD), a severe form of PMS. Only one combination OC has been shown to be clinically effective for this use. It contains the progestin drospirenone and ethinyl estradiol, a form of estrogen.
Hope this helps.