It is normal to experience irregular bleeding and spotting during the first few months after getting a birth control implant. This is because the implant can cause changes in your menstrual cycle. Some women may experience heavier or lighter bleeding or longer or shorter periods than usual. Overall, it can take up to six months for your body to fully adjust to the implant and for your menstrual cycle to become more regular.
If you are concerned or experiencing other symptoms, such as severe cramping, prolonged bleeding, or a foul-smelling vaginal discharge, it's important to visit your clinic for a check-up.