T.S.
Go to planned parenthood or somewhere where you can be seen without insurance. I don't think you're pregnant; the hormone would show up with or without the IUD, but you could have something else going on in your uterus. Have an ultrasound to check for pregnancy and that your IUD is still properly placed. They may also be able to check for an ovarian cyst or fibroid tumor or any of that stuff that can happen in women's reproductive organs.
Good luck.
T.