I need help!

Denise

I feel like I must be doing something wrong when pumping because I am only getting 1/2 oz from each breast when I pump. I can clearly feel more milk left in each breast too. when I squeeze it with my hand there is still some coming out. I just can't seem to get the pump to pull it out. idk if I'm doing something wrong or what. I'm 17 days postpartum and my milk is clearly. I've used different flang sizes too. I'm currently using the elite Ameda pump that WIC let me use. can someone please help me out?