while you want to check with your pediatrician it sounds like your baby is experiencing infant regurgitation also called spit up where the contents in the stomach reflux back into the esophagus. this occurs frequently in babies because the muscles at the lower esophageal sphincter muscle (responsible for keeping food from coming back up) are weak. your pediatrician should be able to tell you if it is problematic which usually happens when reflux causes problems such as inflammation swallowing problems poor weight gain and food refusal. for the most part frequent regurgitation is considered normal when growth is fine and the child eats with well with no other signs of distress. because you are breastfeeding there could be other things contributing such as an overactive letdown (milk comes out fast) and laying baby down right after feeding. a lactation consultant can help you troubleshoot feeding your baby to decrease vomiting. for more on this subject see this webmd article. congrats on your new baby!
why is my 7 week old baby vomiting alot in amount after eating. my 7 week old will go thru a vomiting stage. we will go about 3-4 days without it and then one day she will be on the breast eating and will vomit what seems like the whole feeding and plus some sometimes. my fiance seems to think that she is eating to fast on the breast and should feed her more bottles. i do not feel that is the reason behind this issue because it has happened with a bottle feeding before. just in the last 24 hours she has vomited 3 while on the breast.