I haven't decided when to move to one session. I guess sometime after the year mark. I never minded pumping that much before, because until recently I didn't have to worry about my output, but it's wearing on me mentally, now. If I thought I'd be able to continue producing 6 oz or so for awhile with just one pumping session I'd probably drop to one session right at the year mark. However, given how sensitive my supply seems to have become, I'm concerned that dropping to one session might leave me with very little milk from that one session and he'd basically have to go without breastmilk during the day. He's not ready for that, so I don't think I'll drop to one session until, in my judgement, he can go without my milk during the day if necessary. He has really picked up the solids in the past couple of weeks so we'll see. I'd like him to get some of my milk during the day until 14-15 months, if I could do that with just one session, but I'm not sure with the increasing demands of my job about keeping up my full pumping schedule with 2 or 3 pumps per day much past a year.