I have the same problem when using avent manual bump. The small star turn up side down during bumping. Finally, i use the new one (change another star) and is ok now.
But i found the 膠喇叭always losen. My milk comes out from the top of 喇叭.
Dear Scarlett,
I have similar problem as yours. I can only pump 4 oz each time and the baby refuse to suck my nipples.
Dear fongbonnie,
How old is your baby ? I have discussed with you in other topic before and I remember that you hope to deliver the baby after Christmas even the doctor suggested you to " chui san". Finally, I delivered my baby on 19/12. How about you?