Re: Fluctuating milk supply issue
I'm also thinking that if you're working, the pumping you're doing on Monday, Tuesday, and Wednesday is encouraging your supply to really go up by Thursday and Friday. Then, over the weekend, your baby doesn't need all that milk so he lets supply drop a bit, resulting in less fullness come Monday.
If you're not working, then I think you just chalk this up to normal fluctuations in supply. In my experience, it's very common for oversupply to come and go, and it doesn't necessarily have anything to do with your hormones being "off".
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!"