My son is 1 week old and having trouble pooping what should i do?

Depends: Straining or irregular stooling doen not mean constipation.The 2 wo breast fed kid may go 7-10 days without a stool or poo a little at each meal.As long as it is soft, i don't consider that constipation. If the kid is putting out dry rabbit pellets or stool bigger than your finger you can sometimes tease a stool out using vasaline on a q-tip inserted to the length of the cotton & worked around.