Hello, and thank you for your question. I will be happy to assist you. Answers are for educational purposes only.
There is nothing wrong with you.
There is also nothing wrong with the implant.
The hormone in the implants (progestin) has a tendency to cause irregular bleeding.
Some women won't have any bleeding, but over time, you can have irregular bleeding.
The question is whether you want to continue with this for another year and a half.
Let me know when you are available and we can explore this further. You have some options to help the bleeding now. You could take some estrogen to help build up your uterine lining.
Please let me know if you have any questions and I will be happy to answer them.