I had 1 child 8 years ago, then I had an abortion about 4 years ago due to personal reasons. Now I was diagnosed with Endometriosis and I have been taking Vicodin 7.5 mg about 4 times a day. Now I recently took a pregnancy test and there was a very very light line stating that it was positive. Now I have had a very little really pink spotting and a little bit of cramping just on my right side. So i decided to take another test and it came out negative. What does this mean? Could the pain medicine interferred with the results. Please Help????????/