Mucinex While Pregnant?

Maria

Has anyone taken Mucinex for a cough while pregnant? I would call my doctor to ask but it’s Sunday so his office is closed. My husband went to both pharmacies we have in town and they were all out of Robittusin. I googled which medicine is safe to take while pregnant and both Robittusin and Mucinex kept popping up.

I will be 18 weeks pregnant on Tuesday.