My 3 week old DD appears to be having trouble pooing at the moment. It has been 3 days since her last poop which was about a table spoon worth and dark yellow green. Has no trouble passing wind.
She is most of the time BF, with the occasional formula top up. (Biggest amount has been 90ml)
I have read and been told BF babes can make no 2's once a week. But do they appear in pain or have to strain?

What can I do or give her to ease the process of no 2's??