I've read that if needing to express you should start before 6 weeks because after that your supply is established and it's harder to increase your quantity later on. I just couldn't start then as dd was feeding constantly and then I had thrush badly so now at 3.5 months I'm starting in earnest pre starting back at work in November. If I express whenever possible - during, before, after or between feeds then surely my supply will increase. Dd still feeds about 2 hourly in the day and goes about 6 hours during night but majorly tanks up on waking. Any advice of how I can build up an ebm supply most efficiently. I will be working 2 half days and 3 full days although dh will bring dd to me on one of the full days at lunch time. In a full day I will have time to express 3 times and once in a half day. She'll be with dh when I'm working. I expect she might just have started some blw by me starting back (based on when her big sister got into solids) she'll be 5.5 months but don't expect solids to be much nutritionally until she's about 9 months. Due to family history of asthma and eczema I don't want to use formula at all - didn't with dd1 but worked one fewer day a week back then.