No it's not, in general about the only thing that is recommended for pain relief during pregnancy is Tylenol, and even that if you take too much of it can cause liver issues. Pregnant women should always consult with their ob-gyns before taking anything, too much of what is out there can cross over the placenta and affect the baby.
Lortab is a prescription only pain med. the only person you should be getting prescription meds from is your doctor and the doctor must be aware of your pregnancy. The risk to your baby is not worth it