Hi. So, I am breastfeeding my 5 week old and have lots of challenges. First off, I have very large breasts (40dd) so it's not quite as easy as just putting my son on the boob, I have to position him carefully. Also, my nipples are flat so I've been using a nipple shield to nurse. It's going really well but I've heard long term use of a shield can hurt milk supply but every time I try just my nipple he can't get a grip on it, it's too small and flat. Even when a pump or the shield pull it out, it doesn't last so I continue to use the shield. He does very well with it but it does take him a long time to nurse and I'm wondering if it's because of the shield. I'd like to hear about anyone elses experience using this tool.