The implanon rod and sex!!

Zoe • 19, mummy to be 24.10.16 and can't wait to meet my little princess 😘👶🏼💕
So Ive been on the inplanon rod for 12 months or more now and I have been getting my period consistently with like a2-3 day break every couple of months.. At first I thought it was normal because I know people have adverse side effects but it seems to be if I hold of from having sex after my period for 2 or so days it comes back straight after I've had sex with my partner if I don't it stays away.. Any opinions or comments??? Thanks ladies xx