My baby, since birth, does not pass many stools. She goes about 1-2 days without a poopy diaper. I know that not having many dirty diapers is a sign of not enough intake, but she has been gaining weight since birth (she's 7 weeks now) and has wet diapers at every feeding (about 8-10). She just doesn't seem to poop, and when she does her stools are liquid. It's still a golden color, but it's liquid. She is a happy baby, she doesn't appear to be struggling with gas pains or digestive problems. Should the consistency of her stools and the frequency be cause for concern?