Thanks for your query.
Firstly, I would confirm the pregnancy
before wondering about the ill effects of the two things.
Regarding the HIDA scan, a single procedure would not affect the fetus.
Please read the following link for more detailed information :
is considered FDA pregnancy category C.
No studies have demonstrated harm to the unborn fetus.
All said and done, there is a slight risk of damage to the fetus, but even in the normal population, some amount of background risk exists.
I would not stress
myself out about this.