"i have had the implanon birth control for almost 2 years now.  ever since i have got it my sex drive has gone up, which is great, on the other hand though i bleed like crazy!  i will have a period for a week to 2 months sometimes.  other times i will have my period then two weeks later have another one.  the bleeding is the only part that drives me insane.  i did gain a little bit of weight but it seems like most people always gain some weight when using a birth control.  lately though,  i keep having thoughts and feelings that i am pregnant.  i don&#039;t usually have cramps but the last 2 times i bled i was in severe pain."