Will contraception cause irregular periods or bleeding?
Quite a few methods (mini-pill; implant; injection; IUS) might cause irregular periods or bleeding: it can be unpredictable, maybe light, maybe heavy. The contraception will still work to prevent pregnancy, but bleeding can be a real nuisance
Irregular bleeding with hormonal contraception can happen because the womb lining usually builds up and then comes out during a period – with hormonal contraception, the womb lining stays the same, but the body sheds the lining unpredictably
Does irregular bleeding have any long term effects on health?
Irregular bleeding won't affect future fertility - it won't stop you getting pregnant in future
It will stop when the hormone is out of the body
After the injection, irregular periods or bleeding can go on for much longer
What can be done about irregular bleeding?
It’s important to rule out other causes first – for example sexually transmitted infections, or (very rarely) cancers or hormone regulation problems
If irregular bleeding is down to the contraception method, taking the pill alongside another method (such as the implant) temporarily might help
See a doctor or nurse for advice, before becoming totally fed up with it