implant user here ng 3 years bago inalis.. for me ang side effect is hindi ako nag menstruation at all... yun lang effect sakin iba iba kasi effect nyan sa bawat babae eh. Effective naman sya hindi ka talaga mabubuntis siguro 1 out 10 lang yung defective na implant kaya nabubuntis padin yung iba kahit naka contraceptives na 😅