I was due for period on the Nov 16, I tested on the 13 & it was positive. I took a digital tester & it was also positive. Today I decided to go to the doctors office for a Bhcg test, but they also did a urine pregnancy test & the urine pregnancy test was negative. I decided to take another test at home after the doctors office the test was positive but extremely light so I am concerned about a possible miscarriage or chemical. Anyone have the same problem or issues should I get nervous? According to my last menstrual I am 4 weeks. I am having nausea