birth control
"I got Implanon in on October 2013, after a month my cycle of period has become strange. Starting off being light(spotting) for a week or two, then stopped. But after a while (a week) really heavy like soaking super tampon in 10 mins. That continued a day or two, then light again, lasting for more than 1-2 months at a time, stopping and starting of blood flow during a period. I also experienced cramping and  bloating sometimes, started to gain weight after three month gained 5 kg in three month, some mood swing (but not too bad) I've got it removed of course."