I have a 7 week son who has been primarily EBF since birth. The reason I say primarily is that we have been supplementing (as little as possible) with pumped milk when I have to leave the house (I have been applying for jobs to start once DS is 10-12 weeks and am going on some partial and full-day interviews). My son is a wonderful nurser (good latch and has decreased his time of nursing; I have a good letdown) and he has been gaining weight (was 6 pounds 11 ounce at 2 week re-check and was 9 pounds 15 ounces at 6 week recheck). We struggled in the beginning and were put on an aggressive combo of BF with pumping for 15 additional minutes and supplementing with the pumped milk for the first 2 weeks by a lactation consultant due to jaundice and weight loss. That lead to OS with foremilk/hindmilk imbalance and OALD once we stopped this scheme at 2 weeks but we worked on that and we've been doing well for the past few weeks.
When I know I need to be out of the house, I pump maybe 1-2 times a day (the un-nursed breast; I use a Medela Pump in Style and only for 10 minutes or so because I worry about OS again) to leave my husband his supply for the day. However, I got concerned this past Saturday. I left my husband 20 ounces of pumped milk (thinking this would be a surplus but knowing it was better to leave too much than too little). My husband said our son ate all 20 ounces in 8 hours (from 9 AM to 5 PM). He also said DS did not seem to like the first bottle at all; he kept trying to push it away and seemed very frustrated and was spitting up a lot. He was better for the subsequent bottles. I was wondering if anyone had any insight as to why that may have been. The milk was 5 days old and had been refrigerated since pumped.
Our son also nurses well at night (he tends to sleep anywhere from 2.5-4 hours at a time) so I worry my husband overfed him. Unfortunately, this is the time for the 6 week growth spurt and DS has been acting very fussy (fighting sleep, lots of comfort nursing) so I don't know if this 20 ounces in 8 hours was overfeeding or growth spurt or both. I found the guidelines for appropriate bottlefeeding and will discuss with my husband but we've been doing a lot of them. Frequent burping, feeding over 10 minutes (or so my husband says--I'm a little suspicious)
I also don't know what to do about the comfort nursing when I am gone for interviews (which is a lot right now). I haven't introduced a pacifier and am reluctant to do so.
I'm also looking for some insight on pumping once I return to work. I was planning to pump about every 3 hours but I worry about keeping up with my son's consumption if this isn't overfeeding. I pumped 14 ounces in the same 8 hours that I was gone (once after 4 hours, once after 2 hours and once after 3 hours). I do have a freezer store prepared (maybe 40 frozen ounces from pumping in the early days as suggested by the lactational consultant) so maybe I'm worrying for nothing?
Thanks for any advice you can give. I have to tell you--I had a wonderful experience with my local LLL chapter. One of the two leaders called me when I was ready to stop BF at day 7 and really helped me feel better about how we were doing. We're still at it and I really hope to continue once I go back to work.