Hi welcome to Health care magic forum, Implanon
is a good contraceptive
devise in IUD type, some times due to improper handling or sterilization
it may cause infection . Some times it may be allergic to the body and hence cause such side effects.
I advise you to consult a gynaecolagist for diagnosis and treatment, you needto be treated for the infection and pain.
Besides i advise you to follow some diet recommendations as take more of green leafy vegetables, pulses , egg and meat to improve blood picture and period irregularity.
avoid taking more of spices, chillies, junk foods, and oily foods to avoid pain abdomen in a natural way. wishing for a quick recovery and thanks for calling.