I Have A Paragard Iud For Almost 2 Years.My Last

I have a paragard iud for almost 2 years.My last period was january 25-30, 2016. I had pink spotting on February 17. I was expecting my period on the 25 but no period. Missed period and pink spotting again march 3rd. I feel bloated, get dizzy when getting up , i eat n few hours later feel hungry again and use bathroom more frequently. Could i be pregnant? Or what could it be ? Help