Yes. Lalo if incorrect flange size. However, your pump output should not be the basis of your milk supply. Try checking your baby's output instead. If nakaka 6-8 wet or soiled diapers a day it means, enough ang nakukuha na milk sayo. Keep on breastfeeding Lang mi un ang makakapagpaincrease sa milk.
concern ko kasi bumaba timbang ni baby. as per pedia for observation if hindi nag okay next month introduce daw sa mixed feeding. 4 months na baby ko.