"i got nexplanon about 6 weeks after i had my son in may 2013 and i&#039;ve had a mostly positive experience with it. for the first couple of months, i had no period. the next few months, a very light period which is great because before getting pregnant, my period was pretty heavy. then last month my period was about a week long, and very heavy. i haven&#039;t had any other side effects at all. no moodiness, a little bit of weight gain but i think that&#039;s because i stopped breastfeeding, no headaches, and no acne. i love not having to worry about birth control. this thing is great."