"on my 4th pack and have not experienced any problems other than once. i accidentally missed a pill one time starting my 2nd pack and followed the instructions at night (i always take my pills at 10pm) and the next morning i had what i assume would be similar to morning sickness which was awful. i had the most nausea the first month on the pill but after that it seemed to gradually decrease to the point where i hardly noticed it at all, if any at all. the first time i took the placebo, i got my period after at about the same time i do now regulated on the pill. i haven&#039;t used birth control before so i was not expecting to be regular on the pill this early, but that&#039;s amazing! acne has cleared up too! very happy!"