Pregnancy test

I took a pregnancy test just now and saw a faint line. I have heard horror stories about the “evaporation line”. The test I took was a Target brand early results. It is 3 day before my expected period. The test instructions said to let it sit for 2 minutes and this was taken at about 2 minutes and 30 seconds. I plan on taking another test in a few days but any thoughts? I never used a pregnancy test before.