 [ Symptoms ] i just got the implanon after about 9 months of being on loestrin is it now safe to not use condoms [ Disease ] remember that condoms do more than just contain semen so you will not have an unintended pregnancy condoms help protect against sexually transmitted disease if you are 100 sure of the sexual health and fidelity of your partner you will find the implanon to be a highly effective contraceptive you are not likely to get pregnant even if this was your sole means of contraception