There is insufficient data on safety in pregnancy, however, benzodiazepines may cause congenital
malformations during
the 1st trimester
and neonatal CNS depression during
the last few weeks
of pregnancy; it is expected zopizane may do the same.
It is a class D drug
Given this information, I would seriously consider trying to take something else safer. Do you have an OB yet? If not, that should be your first step, as they are the best at knowing what drugs are safe to take during pregnancy.