Chances of normal delivery

Patient: My wife is 34 week pregnant and recent ultrasound give BPD=85mm; HC=321mm; AC=290mm; FL=65mm; EFW=2205 gms; is it normal? our doc has prescribed astymin drip on coming weekend; whats the side effect of it? why to use it at all; one more thing our baby is in breach position, whats the change of normal delivery?

Symptoms: NA