How effective is sprintec? Is taken at the sametime everyday. Once in while I take it like 10 min late. Been on it for a year and months.

1% per year. In clinical trials with Sprintec, the pregnancy rate was approximately 1 pregnancy per 100 women per year. You seem to be taking it correctly; however, the rate may be as high as 5% per year in women who don't take it correctly. Best wishes!