Stress in Early Pregnancy

I've read mixed articles regarding how stress in early pregnancy can be linked to miscarriage. I am five weeks and four days today and this is my first little one on the way. I had a very stressful workday today and I'm wondering if it could've affected my little one. Any thoughts on whether day-to-day stress can affect early pregnancy, or if it has to be something really drastic to cause any affects? Thanks in advance for your responses!