Are Irregular Periods, Bloating, Cramping And Mood Swings Signs Of Pregnancy?

Back in february i broke out it hives. I went to the doctor and had to take a pregnancy test for a medication she was going to give to me. She said her lab tech said the test looked faintly positive. I have had strange periods the last 3 months ( i had the start of bleeding ten days apart twice). I was terribly bloated yesterday and had some cramping and today now nothing. My period is due today. I have been terribly moody with my fiance. Does anyone think i could be pregnant or not?