My son is 6 months old and has been in daycare full time for about a month (part time for a month before that). He is exclusively breastfeed, but we did start some solids at 5 months.
Before returning to work, I had no issues with supply, in fact had an oversupply. DS has been sleeping through the night since he was about 8 weeks old (8-9 hours per night), and during the day when we are together he nurses every 1.5 hours.
DS goes to daycare at about 7:30am, and is usually picked up at about 5:30pm - give or take 30 minutes. His last nursing session at home varies but it is usually around 6:30am. So that means it can be anywhere from 11-12 hours before he nurses again in the evening.
At first when I went back to work I was able to pump on average 22 ounces. And DS was drinking about 16oz per day. But now for the last couple of weeks he has been consistently drinking 20oz per day at daycare (I send five 4oz bottles each day). He is also now eating solids at daycare twice a day, but this has not affected his milk intake.
They are offering him a bottle about every 2 hours. And as I mentioned above, when he is home with me he nurses every 1.5 hours. Given the amount of time we are apart, do you think 20oz per day is too much?
Here's the other problem... although I was able to pump MORE than 20oz per day initially... I recently had a bout of mastitis followed immediately by my period (my cycles have been back since 7 weeks postpartum), and so my supply took a major hit. For the last 2 weeks I have only been able to pump on average 14oz per day.
So since DS continues to drink 20oz and I continue to pump only 14, that means my freezer stash is rapidly disappearing.
My period has now ended and I expected to see an increase in my supply again, but that hasn't happened. The mastitis has been cleared up for 2 weeks. I have also been taking More Milk Special Blend for almost a week but have not noticed a difference.
One more thing - DS was using medium flow nipples at daycare, but today I sent his bottles with all slow flow nipples on them. I am not sure this will make any difference, because daycare sticks by the (stupid) policy of throwing out unused milk after 1 hour. So even if he takes longer to finish a bottle, the milk is either going to be tossed, or it will be finished and they will offer him another bottle in 2 hours anyway.
Please help me figure out if he is in fact being overfed, or if 20oz is a reasonable amount. It's so hard for me because with my first son he only drank about 14-16oz per day and I was able to pump enough for him up until he was 11 months old, even after cutting back a pump session after a while. Also with DS1 we were only apart about 10 hours a day, not closer to 12 like with DS2.
Oh also, I pump at least 3 times a day, 15-25min per session, and frequently I pump 4x per day. On the days that I pump 4x I do not notice an increase in supply, so it hasn't felt worth it. But if it will help in the long run I will try to do at least 4x a day when possible.