Hello, I would be happy to help you with your question.
The exposure risk was extremely early in the pregnancy
and likely of no harm. At that point in the pregnancy, there is little circulation between the mother and the fetus. Talk with her OB/GYN about her concerns and ask for a targeted 20 week anatomy and growth ultrasound
I hope this helps. Please ask using the Premium service if you would like more detail and a faster answer!!