A brute who beat a pregnant woman so badly it forced her into early labour is set for release in less than a week as his victim slated the 'pitiful' sentence.

Vicious thug William Grieve, 26, was convicted of multiple attacks on his former partner, and was jailed in June this year for seven months.

But he will be freed from prison on September 18, to the horror of his victim, who cannot be named for legal reasons.

The woman described the sentence as ‘pitiful’ and said one of the attacks, which took place when she was six months pregnant, forced her into early labour.

Her child was cared for in an intensive care unit, and medics feared the tot could be disabled.

Glasgow Times: William Grieve was sentenced at Kilmarnock Sheriff Court in JuneWilliam Grieve was sentenced at Kilmarnock Sheriff Court in June

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The woman described Grieve, of Irvine, North Ayrshire, as ‘a monster’.

She said: “He beat me so bad when I was pregnant with my daughter that he put me into early labour.

“My daughter was born three months early and was in intensive care.

“The doctors told me there was a chance of her being disabled.

“Thankfully over the last year she has been signed off by Rainbow House and is doing really well, but it just shows what a monster he is.

“The day I started my new job he smashed ceramic candle holders over my then made me walk over the broken bits.

“Another time he pushed me to the ground for not leaving my shift early on his demand, then kicked me in the back and leg.

“I was almost six months pregnant at the time.”

The final straw came when Grieve turned on the woman’s three-year-old son and assaulted the toddler.

He pleaded guilty to assault and assault to injury in June, at Kilmarnock Sheriff Court, and was sentenced to seven months.

Last week Grieve appealed his sentence at the Sheriff’s Appeal Court in Edinburgh, but it was rejected by judges.

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But his distraught victim says she has received a letter from the Scottish Prison Service informing her of his release on September 18.

The woman said: “The judge said he was still a risk to women and children but then I get a letter to say he will be released early because he has served so much of his sentence.

“I feel let down.

“He got a pitiful sentence as it was for what he done to me, and then for them to admit he is still a risk and release him anyway is unbelievable.

“He’s not rehabilitated.

“He is still a danger to women and children and I’m now living in fear because he is going to be free.”

She tried to hide her injuries but decided to go to police when Grieve harmed her son.

The woman added: “I was scared to leave or to tell people what was going on.

“But then one day he assaulted my son.

“He had only just turned three and was bouncing on the bed, excited to see him, and he jumped up and shoved him right across the bed.

“The power of him compared to a baby, he could have killed him hitting him like that.

“I just thought, ‘no way are you hitting my children’ and that’s when I decided to go to the police.”