EBF .. How Much Does your baby drink?

Brittany
My son is 4 weeks and he is my first breastfed baby.. I'm always questioning myself and paranoid that he's not getting enough, I'm not eating right, am I producing enough ? Should I pump to ? Etc .. He has always nursed 10/15 mins on each breast average about 2 hours apart for each feeding.. Is this normal ?! Should it be more?