WHILE driving in the car with her grandmother, Warwick mum-to-be Skie Meanwell was shocked to hear an old-fashioned view on seatbelts that continues to threaten the safety of Queensland mothers.

Miss Meanwell adjusted the seatbelt near her neck and when her grandmother noticed, she told the 27-year-old she must be getting close to the point of not having to wear one.

The expecting mum was quick to correct her grandmother, saying she needed to wear a seatbelt throughout the pregnancy and there was a correct way to do so.

"I was quite surprised," Miss Meanwell said.

"You could be thrown forward and have more damage done (not wearing one)."

Growing up in a time when seatbelts were not installed in every vehicle would have contributed to the view, Miss Meanwell said.

But new figures from Queeensland Health reveals 42 per cent of women believe wearing a seatbelt could cause harm to them or their baby if they were in a crash.

This causes women to not wear seatbelts correctly or choose not to wear them at all.

Miss Meanwell said she always wore her seatbelt and even with her first pregnancy 33 weeks along, she still found it comfortable.

"In cases of accidents it's good protection...if you're wearing it incorrectly it could harm him more," she said.

Queensland Health is rolling out a state-wide campaign to educate mothers to be on wearing a seatbelt safely.

Queensland Health Clinical Excellence Division Medical Lead associate professor Rebecca Kimble said the safest and most comfortable way to wear a seatbelt was with the lap belt below the bump and the sash between the breasts over the uterus.

"With every kilometre per hour increase in speed, the risk of injury to a mother and their unborn baby increases exponentially without a properly used three point seatbelt restraint," she said.

Warwick Hospital associate nurse unit manager of maternity Ross Newton said he was surprised to hear the rates of expecting mothers who were afraid to wear seatbelts was so high.

"When a seatbelt is worn correctly then the risk is minor compared to catastrophic if not wearing one at all," he said.

Mr Newton said all expectant mothers at the hospital received a pregnancy health record sheet with information about wearing seatbelts correctly.

But he had not come across women who refused to wear seatbelts for fear of harming their unborn child.

"Most women aren't aware there's a right or wrong way but are interested to find out the best ways to care for their baby," Mr Newton said.

Warwick expecting mother Taylah Lecomber will welcome her fourth son in May and has thankfully never been involved in a road crash.

Mrs Lecomber said when she had her first son almost five years ago there wasn't as much talk about seatbelt safety but now she was well informed by medical staff.

"I thought it was a bit strange but it makes sense," Mrs Lecomber said.

"It's not worth the risk, if something bad is going to happen it'll happen but it's not worth going 'Did I do that?'" she said.