Saturday can't come any sooner

I'm so anxious right now! Went to the women's center called choices today to confirm my pregnancy. I took the test and it showed positive even before the time was up the lady said. She scheduled my ultra sound for Saturday. When she confirmed my pregnancy I just broke down crying. This will be my first kid. Im so scared. And questioning if I can do this... if my bf will be there or just leave me with a baby to take care of by myself. I'm going to the ultra sound on Saturday, so I'm excited to see my lil one for the first time! I feel like I'm gonna cry like I did today but hopefully this will be a good cry this time. I'm scared to show and tell my parents. I'm just nervous all around and been feeling uncomfortable moody sleepy and suuuuper annoyed at work.