I have had the implanon for five years now but am recently experiencing pregnancy symptoms. period is 15 days late pregnancy test was negative. help!

Watch for pregnancy: Please be aware that Implanon only lasts for 3 years. So if you have really had it in for 5 years it is no longer effective, and you had more chance of getting pregnant. If you really are not pregnant, and period 2 weeks late, there can be multiple reasons including stress, hormones being off, gaining or losing weight, too much soy, for instance.