I didn't have any side effects with the Implanon. I love it and am one of the lucky ones who doesn't have any side effects, nor do I have regular bleeding.

However, my aunt (aged 37) put on 10 kgs in 10 months, my younger sister had to have hers out because of continual bleeding, and another friend had her period two weeks out of three, so she had hers out too.

I guess it depends on your body's own reaction, which is different for each person. My sister had no bleeding for the first 12 months and then started bleeding, which is unusual.

Best wishes.