Subdermal Implant

Hello po mga mommies. gusto ko lang po magtanung about menstruation sa implant... i got my implant nung June 1... i had my first period nung June 9-16.. and yesterday may spotting na ako, starting up ulit ng menstruation ko... does my implant 100% parin na magwork if my contact later on... or i need to consider other birth control option para ma ensure na di mabuntis? Thank you in advance for your responses...