Will a pregnancy test be accurate if I have an iud?

Yes. Pregnancy tests work by detecting a hormone that is only produced when you are pregnant. Having an iud should not effect the results of the test.
Yes... The iud does not change the ability of the test to detect the pregnancy...The test detects a hormone your body makes during pregnancy--hcg-- (human chorionic gonadotropin), the hormone of pregnancy. So, if you become pregnant, you make this hormone and the test detects it and shows you (+) on it...