Excited but can't stop worrying😦

This is my first pregnancy. I am 4 weeks and 3 days today and found out 4 days ago that we are expecting!! I am so excited, but I know the risks of miscarriage (chemical and ectopic pregnancy) aren't exactly low. I just want to enjoy this time and stop worrying!! I thought once we got pregnant it would be all happiness and excitement, but I find myself constantly Googling what could go wrong and symptoms. I just wish I could relax and enjoy it! I want to tell my parents and DH's parents but I don't want go make a big deal out of it and have something go wrong. I have no reason to believe that I would lose the baby, so why can't I just quit worrying??