Feedings have a beginning, duration and end
You'll know if your baby isn't getting enough nourishment if you feed her for a long time, then she wakes up 20 minutes later crying for more food. This can turn into what feels like around-the-clock feeding.
What's happening is that your baby is feeding well for the first part of the session, but after 10 to 20 minutes she isn't getting much else. Instead of keeping her at the breast, you're better off finishing the feeding with a supplement. That way she'll get more food and gain strength for the next feeding, and you'll feel there's an end to the ongoing feeding.
You might think this plan of pumping and supplementing is more work than breastfeeding, but it's actually less work because feeding times are limited to 20 or 25 minutes. Even with supplementing and pumping, the entire feeding should be finished in 45 minutes or less. That's probably less time than you were spending before, when you were spinning your wheels with a baby on your breast who wasn't getting filled up.
Giving your baby a supplement is in no way the beginning of the end to breastfeeding. Instead, it's a way to ensure that your baby is getting a full feeding each time.
If you're feeding your baby frequently and she still seems hungry, you're not going to be able to break that cycle and boost your supply unless you supplement. The only thing that will boost your milk supply is better drainage from pumping. The faster you boost your supply, the sooner this problem will be resolved.
This information is courtesy of Bravado Designs, the brand synonymous with women's breastfeeding success for 18 years.
Source: Heather Kelly is an International Board Certified Lactation Consultant (IBCLC)