Re: 4 month checkup, pretty slow weight gain
First thing, he's too young for solids. The current recommendation is that babies should be exclusively breastfed for the first 6 months. Intake of complementary solids before 6 months of age generally does not increase total caloric intake or rate of growth and only substitutes foods that lack the immunoprotective components of human milk. Before starting solids, you want to look for the signs of readiness referenced here: http://kellymom.com/nutrition/starti...s/solids-when/.
I don't see anything wrong with your baby's weight. On this chart he's right below the 50th percentile: http://kellymom.com/images/growth/growthcharts.gif. That's a totally normal weight. He's dropped a tiny bit since last month, but that's normal, too. The charts make it look like babies should always follow the curve- but that sort of non-variable growth is a statistical artifact. Real babies will vary their rate of weight gain. It's very normal for a baby to sometimes pause in weight while shooting up in height, or to pause in height while allocating more calories to weight, and right in the 4-6 month window a lot of babies drop a few weight-for-age percentiles as they begin to allocate more calories to motion (reaching, rolling, kicking, etc.). My kids both went from around the 99th percentile at 3 months to around the 75th-80th at 6 months, because they were suddenly so much more active.
When there's a concern about weight gain, the best thing to do is almost always to simply nurse more. That's better for your supply and ensures that the baby isn't being overfed or underfed, because when a baby nurses he takes what he needs, not what you think he needs. Right? You know of have to get into the hair of trusting your body and your baby to figure things out without assistance from the pump or the bottle.
It sounds like you're doing a lot of pumping at bottles at this point. Do you mind sharing why? Maybe we can help you move to an easier, more spontaneous nursing style.
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