I feel like my symptoms are going away.

I just found out I'm pregnant. Have not confirmed it through the doctor yet. The only symptom I've had was sore breast and that went away to just very sore nipples and now they're only sore in the morning. I was 2 weeks late before I got a positive test and it was very faint. Since then I've been testing to see if the line gets darker and it has. I'm just so scared.