Breastfeeding Question

A💓C • Married, 33 yrs old pregnant with our 3rd. I haves 2 boys ages (14/8) and praying for my little girl.
I haves 2 questions and would love your feedback
My daughter is ONLY breastfeed, so when am I supposed to pump if I breastfeed at every feeding? Should I have that much milk to breastfeed and pump? 
If I squeeze my breast after a feeding and literally nothing comes out unless I squeeze hard and/or the nipple only does that mean I'm not producing a lot of milk or that my daughter drank it all?  My daughter has the recommended amount of dirty diapers (pee and poop)
Your advice is appreciated. Thank you