"i got nexplanon inserted after giving birth to my son and have had it for 3 months. right away i had terrible headaches that lasted about a week. i got off my period the day before insertion and the day after insertion i started heavy bleeding again for 2 weeks, then spotting which lasted 4 weeks straight. some days heavy enough to wear a light tampon &amp; others light enough for just a pantyliner but it was nonstop. the spotting isn&#039;t so bad &amp; has gotten lighter. i have lost all baby weight. i am slender &amp; normally energetic with a big appetite but now i hardly eat &amp; have no energy (possibly because i&#039;m a new mom) but my worst symptom is that i am extremely moody! i am waiting 6 months before i take it out."