"i received the implant around march 2016. the first few months my periods lasted 10 or more days. each period was between light to moderate flow. after about 4 months it began to even out to 6 days each period. before the implant i have had cramps and sever back pain with each delightful time of the month, before i had no problems with my cycle but now it is unpredictable. the implant hasn&#039;t improved the cramps and back pain but overall the effects of the implant is better than being pregnant. i am sexually active with one partner and with the implant i don&#039;t have to worry about getting pregnant."