Hi Maggie, thank you for your feedback! We are happy to hear you are using both our Pregnancy & Nursing pillows. Our Pregnancy pillow is bigger in size and this is mainly because it is designed for the whole body support during rest and sleep. It can offer you a 5-point body support for your belly, lower back, pelvis, knees, and ankles. Some of our customers are also using it for nursing, but due to its size, it is not as portable and easy to take while you are on the go as our Nursing pillow. On the other hand, our Nursing pillow is designed specifically for nursing. It is also adjustable in firmness and height and is designed to ease the strain on the neck and shoulders which we know many of our customers love and appreciate. If you have any questions regarding the Nursing pillow and how you can best use it, please reach out to us at hello@bbhugme.com