My 1 month old is pooping with a lot of mucus. i beast feed and give her similar pro-sensitive. shes also having a lot of gases. her tummy sound loud with gases, and shes making a lot of effort when she poops. the color of the poop is yellow?

Sounds normal: This sounds like normal breast fed stools for a newborn. Stools are typically yellow, slimy/watery, and can be "explosive " at times. Breast milk contains natural laxatives, hence the gurgling noise you note. Straining while passing stools also very common - have you ever tried pooping while laying down? If your baby is gaining weight and growing well, and no blood in stool, put yourself at ease.