Remove nexplanon?

I’m debating removing my implant because it made me gain weight and worsened my mood swings. And I’ve heard women are getting pregnant while on it. My periods are also lasting for so long like 15-30+ days! However, I’m not sure what other method to try, and if I should even remove it? What are some side effects of removing the implant ? What would be a better choice? Help! I’m so in between