What are the advantages of Implanon NXT®? Highly effective (99.9%). This means that fewer than one woman in every hundred using this method of contraception for a year would become pregnant Long-acting (lasts three years) Reversible and rapid return to usual fertility (most women ovulate within the first month after removal of the implant) Inexpensive – cost effective A small percentage of women have no vaginal bleeding Less period pain for some women No pills – no injections