Could I be having a low supply?

I exclusively breast feed. When I pump between meals, I get like 1 Oz from one side. But have been seeing what other women post. Omg! Am I a low supply mom?

My baby seems content and when he drinks, sometimes I drip from the other side. Also he is gaining weight well. He is 10 weeks today and weighs about 14 pounds. He feeds every hour and I feed him on demand. Or is my baby just drinking it all n I am left with nothing to pump? How can I up my supply? Are there disadvantages of having an over supply?