Help!

Shanda • 26. Anchorage, Alaska. TTC after losing twins at 11 weeks

So I know the probability of me being pregnant right now is very slim, but I am currently on the ParaGard IUD. And I have been having what I think are pregnancy symptoms. Super sensitive breasts, nausea (but no vomiting), back aches and pain, super sensitive and emotional. My period isn’t due for another 5 days. I have taken a pregnancy test and it has come up negative. Any advice?

(Of course I will be going to the doctor soon if symptoms don’t seize up)