Medela has drastically cut the number of size options they are offering in the Medela Seamless Softcup Bra. We currently have stock in the majority of sizes up to 42DD.
Not cheap, but you should try a Medela Seamless Softcup. They're a little pricey, but soooooooo worth it. They're the ONLY bras I find comfortable during pregnancy and breastfeeding. They're really soft and have a little stretch to them, so they stay comfortable even when the size of your breasts fluctuate.