So I have a 3 1/2 month old baby. The last time she had a wet diaper was last night at about 7 PM ish. She is barely wet now. But I am concerned she is acting a little differently and I know she drank 3 ounces of breastmilk last night and I nursed her this morning and I was really full so I know she got milk. Also she has a poopy diaper and when I had changed that it seemed to be a little pink in the area where she would normally be wet. Should I be concerned, or since she is now a little wet now it was just a fluke thing?