Scared I miscarry

I'm 8 weeks & 5 days pregnant and I can't get over my worries that I'm going to miscarry :(

I know so many people just now that are pregnant and everything seems to be going good with their pregnancies. I read that 1 in 5 pregnancies end in miscarry so if I know that everyone else's is going good. Will I be the unlucky 1 to miscarry. This is my first pregnancy and I do get a lot of feeling sick but I barely am actually sick. Can anyone calm my worries? I have my first scan on the 27th and I just hope and pray that everything is fine with my little baby.