Re: Weight and length percentage changes
It's totally normal for growth to proceed at different rates in different dimensions. Sometimes a baby puts more energy into growing in height, sometimes more goes into weight. You want to see baby growing in all dimensions- height, weight, and head circumference- and not focus too much on month-to-month fluctuations in where the baby lands on the charts.
Don't worry about the weight-for-length percentile. Some babies are apple- shaped- that is, heavy for their length- and some are lean for their length banana-shaped babies. There's nothing wrong with either body type. It's also not a bad thing to have a leaner baby/child. Having a fat baby may get you endless praise in the newborn stage- "Oh, good job mom, look at those rolls!" But later on in childhood, having a child who is at the upper end of the charts gets you nothing but pointed comments about vegetables and exercise.
Finally, please don't worry about foremilk. It's a useful descriptive term but it's also something that causes a lot of unnecessary worry. All mill contains everything a baby needs to grow and develop, and a baby will grow well on so-called "foremilk" alone, provided she gets enough of it.
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"