The nurse is teaching a group of clients in a prenatal education class. What statement by a pregnant client indicates the need for additional teaching?

During pregnancy it's safe for me to use my regular herbal remedies.

My doctor will tell me if it's safe to take my allergy medications.

I'm only 10 weeks pregnant, so I should continue taking folic acid.

I should avoid all x-rays unless absolutely necessary and tell them I'm pregnant.