Confused

Ok ok so I’m having a little bit of a scare. My period is late I took a test a couple days ago ( one step cvs brand) and the negative line shows clear as day, but I am 100% sure there is another line but it’s very faint. Now I’ve taken tests before and they have been negative nothing I have second guessed because well I didn’t see another line. Now it’s different I have a strong gut feeling that I may be pregnant. Now I’m here at my doctors office waiting to take another test. I know the obvious thing to do is wait but I’m nervous.