Being pregnant on BC!?? Anyone!??

Has anyone ever got pregnant using birthday control? The inplanon. I just had twins a year ago exactly and decided to get on birth control 2 months after. Didn't want to end up with twins again ha. But I had sex with my husband on the most fertile day, as it shows on glow. And I know it's rare to get prego on it, but I just want to know if anyone here has? Iam alittle scared to right now and i wouldn't want to still keep it in if I ever do, to harm baby.  Anyone experience being prego on BC? TIA!:)