I have been on the paragard for about 2 months and had unprotected sex on my period and it ended that night when it was supposed to be another 2or 3 days longer. A couple days later when I was supposed to be on my period I had a check up with the doctor who put in the paragard and she said everything was the way it was. The strings in place. Where. They should be but now 2 weeks later I feel sick to my stomach bowl problems and.light headed and really stressed or Moody or something. Could I be pregnant?