Thanks for the query.
As you are having IUD, the possibility of pregnancy
Symptoms you are having could be due to side effects of the IUD and the medicines you are using.
And just by symptoms we cannot confirm or rule out the pregnancy.
So you once go for blood test
That can give more accurate result compared with urine test.
After ruling out the pregnancy, you can take symptomatic treatment.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429