Totally natural. From my experiences with my 4 kids: It’s usually when they feed really well Or when they are not feeling well. So check those two boxes and you should be good 👍🏾
Baby will not have a consistent sleep schedule/wake windows for a while.
Yep, especially overnight! I give her 2 big feeds before bed. (8 and 10pm). She then sleeps 5-6 hours. I follow the wake windows during the daytime.