[skin concern] is it normal to have a 1 2 or 3 pimples every week even if i have my AM and PM routine?

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i have my own routine for 3 months or more but i still have pimples growing. im acne prone and oily. i have cleanser toner serum moisturizer and sunscreen and still im having pimples. is it normal or is my product that i am using is not good?
Girls Blog 2015
Submitted by Flumchum