smoking Mary Jane

Hey there, quick question for folks. Has anyone smoked weed at all during pregnancy? I know someone who stopped smoking when she found out she was pregnant, then took like 5 puffs today approaching week 27. But that is the only time she has smoked anything during most of the first trimester and all of the second trimester. Non-judgmental, honest , feedback only please! Like do some people smoke during pregnancy? She has just been super stressed out and does not take prescription pills.