My last period was January 8, 2013 and I am now 21 days late. I had my tubes tied in 2004 and have always had regular periods 28-30 day cycle. I took a HPT 4 days ago and it was negative. I have been extremely nauseas every night for the last week or so. I called my PCP and the receptionist recommended that I wait and retest in a few days and see what happens. What do you recommend?? Could I be pregnant?

