Help!

Just last week I found out I was pregnant bt taking a home pregnancy test and confirmed from the doctor as well . I just took a pregnancy test again tonight and the line on the test is showing a fainted line instead of being dark. For the last few days I been taking alot of pain reliefs because my tooth was unbearable and finally yesterday I went to see the doctor about it and they gave me some safe antibotics to take until I see my dentist on the 22nd . They gave me the pink amoxicillin that leaves a strong smell to my urine. Am I losing my baby? I don’t feel any cramps or anything?