A police officer trained to help victims of domestic violence has been found guilty of pursuing vulnerable women who he met through work for sex.
PC Simon Salway, 39, from North Hertfordshire, targeted the women after they had contacted the police for help.
One had a relationship with the married officer and eventually had a baby by him, Luton Crown Court heard.
Salway was convicted of six charges of misconduct in a public office in relation to five different women.
He was acquitted of a seventh misconduct charge involving another woman.
Salway was granted conditional bail and will be sentenced in the new year. Judge Richard Foster said it was "inevitable" that he would be sent to prison.
During the trial, the jury heard the officer, who was based at Hatfield Police Station, had "wilfully abused" his position over a sustained period of time.
Some of the women were the victims of domestic violence at the hands of abusive partners. Salway won their trust and flirted with them before sending them sexual texts and messages, the court heard.
Prosecutor Gregory Perrins said: "He was opportunistic and saw every encounter with a young vulnerable woman as an opportunity for sex."
The court heard that Salway kissed one woman who was being threatened by her partner, after arranging to meet her in a lay-by while he was on duty.
He had sex with another vulnerable woman in her living room, the jury was told. She later discovered he was married and ended the relationship, before she realised she was pregnant by him. She gave birth to their child in May 2008.
Salway persuaded another woman to perform a sex act on him before he went back to work.
He was arrested in March 2014 and admitted he had fathered a child by one of the women, but denied all of the charges.