not that I'm aware of I rode buses until I was about eight months pregnant with my oldest son and my second son and yes bus drivers do hit speed bumps but unless they get into an accident with you in the car it does not hurt the baby I didn't know people that drive cars and hit speed bumps and bumps on the road and that doesn't hurt the baby's still no bus drivers that go on speed bumps does not for any kind of bumps on the road or riding on the bus does not hurt the baby

no nothing like that can hurt your baby