So I've been reading everyone's post. And I have had my Mirena in for about 3 1/2 years and I'm just now starting to have pregnancy symptoms. nipples are very tender, my boyfriend is always tired. Im experienc lower abdominal cramping also. Some days I'm nauseous and others not so much. It's has me very curious and I have spiked myself out before. Lately I've been getting headaches outta nowhere i have a doctors appt on Thursday of next week. So I guess ima have to wait tip then to kill my curiosity.