Why is my baby nursing less?

Lactation consultant. Insurances usually pay for lactation consultation with a lactation nurse. Often lactation nurses come to your home and teach you many great techniques. Ask your pediatrician which one he/she recommends. It can be invaluable....And covered too. Great combo. Good luck and congrats on the newborn.
It depends. Depending on the age of your baby and what is going on, there are a number of possibilities. In a newborn, if your baby is sick, poor feeding may be a symptom. In an older infant who is eating solid foods, your baby may be getting more calories from the solids and more physically active (and also more efficient at nursing), so the feedings may be spreading apart. Good weight gain is a great sign.