 [ Symptoms ] my period came 4 days early i have been on birth control for 6 years i am 22 usually have very regular periods i took my bc pills early for a few days and my period came 4 days early any reason why this would happen did taking the pills earlier induce the period [ Disease ] probably but there are soooo many variables to consider such as the dosage of your bcps the type and what you meant by a few days early things should straighten out in this next cycle assuming you take them as prescribed