nexplanon question

Gracie

i’ve had nexplanon since july and i’ve had unprotected sex frequently with my boyfriend. since i’ve gotten nexplanon my period has been 3 weeks on and 3 weeks off and it’s always been on time. well it was suppose to start 3 days ago and it hasn’t and i had all the symptoms before hand: sensitive breasts, cravings and cramping and now it’s all gone. i don’t have anymore symptoms. what does this mean? because i’m being very paranoid right now.