"well, i have had implanon for almost 2 years. i spotted for about 6 months the first year and have not had a period since. it was definitely a blessing in itself because i have always had horrible periods. unfortunately, in these past 2 years i have gained a considerable amount of weight. i usually weighed from 110-115 and now i am almost 130 lbs. grant it, i am in nursing school, so my stress level is very high but i have never had trouble with my weight before. i have gone up a whole bra size! my breasts stay sore constantly as well. i am almost 23 years old, so i don&#039;t know if this has to do with my age or what. it&#039;s wild. i have always been so tiny and bam as soon as i get this, i struggle with my weight."