When bus driver Murray Dillon saw a pregnant woman slouched over her car steering wheel on Wellington Street in Perth earlier this year he did not waste time deciding what to do.

"There was all these people gathered around and no-one was doing anything," said Mr Dillon.

"I just walked straight in to the crowd, I knew the answer.

"In my mind, she was dead, she was grey ... no pulse, no nothing.

"I got in the car and straight away pushed the seat back and gave her mouth to mouth and CPR."

After what seemed like 15 minutes, an ambulance arrived and Mr Dillon, 61, went back to his bus in shock.

"I was pretty upset ... because at the time there was no sign of life at all," he said.

Relieved to learn mother and baby survived

Mr Dillon did not hear anything about the woman until two weeks later when she sought public help to find him and they were reunited.

The woman suffered a stroke, but survived and so had her baby.

"I got to meet Shannon and her partner Alan the next day. It was unbelievable," Mr Dillon said.

She told him doctors said if it was not for Mr Dillon's action, she would not be alive.

"Someone had to do something, you just can't give up," Mr Dillon said.

"You couldn't say well, that's it because it's not. I am so glad I was able to help her."

In recognition of his actions, Mr Dillon has been given a Royal Life Saving bravery award for his service to the community.

He said he was excited to be able to share the moment with his family.

"When you have your family with you which is so precious to you," he said.

"And you have saved someone else's family. I feel very proud, honoured and humbled."

Nine-year-old girl who pulled brother from pool also honoured

Eleven other West Australians were also honoured with a bravery award, among them was nine-year-old Bella Gilliland who saved her 18-month-old brother from drowning in their family pool.

Bella was jumping on a trampoline in the backyard in July when she noticed her brother's bib floating on the surface of the pool.

"I knew because I looked around and Jobe wasn't there and Mum was inside and I knew it was him straight away," she said.

"I just thought that this is scary, what am I going to do?

Bravery award recipient Bella Gilliland with her brothers Duke and Jobe. ( Supplied: Gilliland family )

"I just ran straight in and jumped in the pool to get him. He's really heavy," she said.

He five-year-old brother Duke then rushed inside to alert their mother who arrived to find a choking and spluttering but conscious Jobe.

"I just jumped on the step and got him out face first so he can breathe," Bella said.

Bella's mother, Danielle, said she knew the precious seconds Bella saved by jumping in herself rather than seeking help, probably saved her son's life.

"She didn't think twice, she just ran and jumped in and grabbed him out," she said.

"They were precious seconds she didn't waste."

Bella now shares her own message of water safety with other children at school.

"I would tell them to watch out for gates if they have little siblings and to make sure it's shut," she said.

Royal Life Saving Society WA's Chief Executive Officer Peter Leaversuch said the award recipients had displayed exceptional courage, empathy and initiative.

"As we approach another summer I encourage everyone to think about how they might in their own way make a contribution to drowning prevention," he said.

"Everyone can be a lifesaver."