I had a baby 6 weeks ago and when I went to John lewis to get a nursing bra before baby was born they fitted me with a 40k nursing bra (with room for milk to come in) but I didn't buy it because it wasn't any easier to get my nipple out than pull down a normal bra! However since having baby I'm back in my old 40f bras and I don't actually think my boobs are that much bigger despite breastfeeding.
When I can find a tape measure I'll measure myself but are there any tips for doing the bra intervention for nursing bras?