I've been wearing these bras since 4 weeks post-partum, and I love them. I wore a 30G pre-pregnancy, went up to a 34J after delivery, and after 6 months, settled into a size 30H/I. I purchased these after delivery and began with the medium; now I wear the small. They're comfortable and easy for nursing during the day and at night. They're not as supportive as an underwire bra in my bra size, but they're much more comfortable. So even though I could probably go back to wearing a "regular" bra, I still wear one of these nursing bras all the time. I started with 3 bras and quickly realized with leaking, a newborn, and piling laundry - that it was better to have more; so now I have at least 10 in beige, black, and white. I purchased them all on sale, and they have been worth every penny.