WHEN police pulled Gatton father Derek Lewis over for a random breath test and licence check his excuse for not having his wallet would have been hard to believe.
But when he lifted the floor mat on the passenger seat showing it was covered in blood the officers quickly let him go.
Only minutes earlier Derek's car had been pulled up on the side of the Warrego Highway with his full-term pregnant wife Kaily and their eldest daughter Skye.
Kaily had gone into labour and they were rushing to the Ipswich Hospital, but by the time they reached the Glenore Grove turnoff it was too late.
"We had just hit the 100 km per hour zone when I turned to Derek and said, 'you're going to have to pull over'," Kaily said.
"He had enough time to jump out, come around to the passenger side, whip down the pants and catch her."
The surprise birth wasn't how Kaily had imagined bringing her fourth child into the world, but her waters still hadn't broken and she thought they had more time.
Earlier that day Kaily was out shopping with her mother when she started having faint contractions just after 2pm.
Kaily, who didn't think she was very far along in the labour, rang the hospital who said she could come in if she wanted or wait a little longer at home.
"I had three contractions while I was on the phone to the hospital so we decided to pick my eldest up from school and head into Ipswich."
"I thought we would make it to the hospital, although I did ask Derek on the way out of the house if I should grab the raincoat to sit on."
Less than an hour later Evvie was born.
During the impromptu delivery Skye, 16 was on the phone to ambulance officers who soon arrived to take mum and bub to the hospital.
Derek followed behind in the family car and that's when he was stopped by police.
"When he told them what had just happened the police officer looked at him as if to say 'are you serious?'," Kaily said.
"He couldn't believe it, that he got pulled over."
Kaily and baby Evvie stayed at Ipswich Hospital for four hours on Tuesday after the road side ordeal.
Both are healthy and Kaily said while it wasn't an experience she wanted her eldest daughter to see, it was natural and she's glad to be holding her new born.
Evvie was born on the Warrego Highway at 3.04pm weighing 3.22 kg on July 19, 2016.
Proud dad Derek spent today cleaning the car.
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