"i&#039;ve had the nexplanon for about 1 1/2 months now.  the insertion was painless and took only about 5 min. the doctor said i would probably bruise around the insertion site but it was barely a bruise there.  i had no pain or swelling afterwards. i have not had a period since the insertion no weight gain, mood swings,  headaches etc. i love the nexplanon so far. i switched from mirena, which i also loved but my husband got to the point where he kept feeling the string and it was irritating him."