To reduce your risk of cervical cancer:

Get Vaccinated against HPV: Vaccination is available for girls between ages 9 to 14 years. The vaccine is most effective if given to girls before they become sexually active.
Routine Screening Tests: Routine screening can detect high risk HPV, or precancerous conditions of the cervix, so they can be monitored or treated in order to prevent cervical cancer. The Ministry of Health recommends that women begin routine screening at age 25 and repeat them every few years. If pre-cancerous lesions are found, they should be treated to prevent progression to invasive cervical cancer.
Don't smoke.