PREGNANT or Chemical?

Last Saturday I found out I was pregnant. It was weird because I really should of been ovulating and I got a very normal period with negative pregnancy test a week(ish) prior. I have tested for a almost a week straight now and have gotten positive results but on the fainter side. I have tested with all kinds including digital and all positive but faint. I test every morning and in the afternoon because I am waiting for one of them to get darker and put my mind at ease. I also have an appointment for Monday with my doctor... but I am growing impatient. I would like to know if any women out there have had similar issues. Am I on track to have a baby or chemical pregnancy?