My DS is 5.5 months old and EBF. He is a big boy, 19lb 14oz at our last weigh in and in between the 95th and 98th centile, which he has been on or around more or less since birth. I've never really enjoyed expressing, there was a period when DS was around 6-8 weeks where I would express everyday and DH would give him a bottle each night before bedtime, but I quickly came to the conclusion that rather than giving me a break, expressing was actually more stressful - finding the time to do it, sterilising, worrying about expressing a good amount etc. So I stopped the daily pumping, and just did it now and again to have a bit of a back up supply in the freezer when it was needed.