Flange too big???

Jessica

Okay, so. To my surprise people can hold their flanges with their arms while being able to text and not pay much attention to the pump. Me on the other hand- I have to use my hand to keep it pushed on otherwise I lose suction and it blows air out the back.. or milk if it puddles. I don’t feel like it’s THAT roomy between nipple and tunnel, but should I try a smaller size? Should it be able to hold at least a little bit of its own suction?