breast pump flange size

You can buy during a few days before EDD or during hospital stay. 4 months ahead might be too early as our nipples change during/after pregnancy, it will also change for some through out breastfeeding.

I think you can buy nearing to edd. I have yet to deliver bt i just bought a few sizes on shopee so i can ask LC which measurement is the right one for me. And incase after delivery i need to use it

spectra flanges usually 24 mm..for the set.. quite easy to get.. no worries. I measure at hospital is 21 but 24 also ok ... as u pump more, it might increase or decrease also lol

I bought the correct size after bb is born. But i feel my nipple size keeps changing so i have 19mm and 21mm just in case..

Wait closer to edd