Pregnancy..?

For the last couple of days I had been feeling really nauseous, tired, and weak. I was 3 days late on my period.. So I decided to take a test. The line was very faint, but it was there! Im only 18 (almost 19) and this will be my first baby! I'm going to the doctor hopefully tomorrow to be sure.. But I more than likely am. And my boyfriend is super excited! That's the best part!