"i started taking bc pills when i was 15 yrs old. began using sprintec when i was maybe 16 or 17. either way i&#039;m 22 now and am happy with my body and its&#039; cycle. i get my period usually on time every 4 weeks (28 days). i do cramp, but lighter than off oc. i have never been pregnant to my knowledge, and i wouldn&#039;t say i&#039;m remotely good with taking it on time or every day. sprintec is very reliable in my opinion, i would recommend it to someone interested or looking at bc."