Re: 9 Mo Old Waening!
My understanding is that babies don't self-wean when they are under 1 year old. Is your baby still nursing well, and seeming satisfied, when you are together? If so, she's not weaning. But she may be decreasing her demand somewhat, leading to a decrease in supply for you and a difficulty in pumping out those bottles during the day.
Some moms have real struggles trying to maintain their supply while pumping- so don't feel like you are alone! Not being able to pump frequently enough is one reason why supply trouble are common- so adding in a pumping session whenever possible is a good idea. When I needed to increase my supply, I pumped every 2 hours during the day and every 3 at night. (It was exhausting.) You may want to try pumping after nursing, and power pumping: pump for 10 minutes, rest for 10, pump for 10, rest for ten, and finally pump for ten again for a total of 30 minutes of pumping in a 1-hour period. Power pumping is supposed to mimic the way a baby feeds and boosts mom's supply during a growth spurt. A dying pump motor is another possible culprit for your difficulties- motors get old, and pumps lose suction- so you may want to get yours checked. You might also try nursing your baby as frequently as possible whenever you are together. A lot of moms notice an upswing in production after a weekend home with their babies, because a suckling baby is more efficient than a pump at boosting supply.
If you can't get your supply up, and you must supplement, don't worry: you will still have milk when your child wants to nurse. You can keep on with 4 feedings a day for as long as you both want to. My DD is 28 months and nursing just 2X per day, and I still have milk for her. Not a huge amount, but it's there.
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!"