"i got nexplanon inserted february 12. i had my period since january 25. i decided to try nexplanon because the depo provera gave me mood swings and longer periods. i have had my period now for almost 7 weeks. i dont know if its because of the depo or if its also the nexplanon. i have gained 7lbs since starting this. its been great for birth control but that may because i havent had sex."