I got the IUD in Jan last year after my son was born, so I haven't had a period since. These past few weeks I have been feeling really exhausted, nauseaed, breast/nipple tenderness, cramps, bloating, lower back pain. I took a home test and it was negative, but i still feel like c**p. I dont know what to do. Last time a was pregnant I found out 2 weeks after conception.