Worry wort?!

Kalli • Almost 21, happily engaged. Pregnant with our first baby.
Okay this is my first pregnancy and I worry about everything, miscarrying to where I check percentages online weekly, I check what foods I can and can't eat and I google everything . I'll be 6 weeks tomorrow and don't have an ultrasound or find out anything til January 20. Can anybody help put my mind at ease?