I'm on mirena (levonorgestrel) but I feel fluttering in my abdomen and im constantly tired nauseated bloated in massive all over body pain. .. Am I pregnant?

Do a test. The Mirena (levonorgestrel) iud is a very effective method of birth control, but it is still possible to get pregnant with it in. The only way to know if you are pregnant is to do a pregnancy test. If the test is negative, then you need to look for another cause of your symptoms.