Yes with BP absolutely not with hognose.sometimes they can hold it in for a while, even a few months, so it could be possible she hasn't gone at all.
(sorry if im wrong, a bit new around here)
If fed right colubrids are pooping machine unlike BP that can go weeks without defecating now the question is how much and how often do you feed.
Hatchlings should be fed at least twice a week, a prey equal their girth size to 1.5 times their girth size.
I feed mine every 3 to 5 days until a ear old of 50/75 grams and 5 to 7 days after that until 150 grams than once a week.
Keep in mind that pinkies are so small there is very little nutrition and a common mistake with hognose who have a very fast metabolism is not to feed them enough.
Bowel movement looks nothing like BP bowel movement either.