Very light brown spotting

Jessica • ⛪️ + 👫 + 👶 + 🤰 = ❤️
I am 7 weeks today, and just had a very small amount of light brown spotting. Should I be concerned? Should I call the doctor? I haven't even had a sonogram yet, only a blood test to confirm my pregnancy. I'm not due for my first obgyn visit until 10 weeks pregnant (Nov. 1)