Fisayo Adarabioyo, 27, turned up at his ex-partner’s home in Cheshire and banged on the door leaving her terrified.
The ex-Crystal Palace player, whose brother Tosin plays for Fulham, also chucked gravel at her windows as he demanded to be let in.
Adarabioyo later bombarded her with texts, telling her: “If you tell anyone I’ll kill you”.
He also messaged his ex, saying: “Just kill yourself – everyone will be happier”.
Adarabioyo, who also Macclesfield Town FC, was convicted of harassment without violence on Tuesday, MEN reports.
His ex has now bravely spoken of her ordeal after the footballer was handed a 12-month community order.
She said they met through social media and began a “casual” relationship in 2019.
The mum, who has a child from a previous relationship, said it was never serious as there was an 11-year age gap.
She ended things in December 2021 but later discovered she was pregnant.
The woman said she tried contacting Adarabioyo after deciding to keep the baby but her first attempt was unsuccessful.
She then decided to send the striker a text letting him know the news.
The ex said: “I was nearly 24 weeks pregnant at this point. His reaction was shocking and scary.”
Later that night, Adarabioyo showed up at her home and banged on the front door demanding to be let in.
After he finally left the property, he then sent dozens of vile text messages urging the woman to kill herself.
Another said: “I genuinely hope you die.”
The terrified mum called police after Adarabioyo also made 45 attempts to call her.
In a powerful victim impact statement, she told how she has since given birth to a baby daughter.
She added: “When I hear a noise at night, I feel worried he has come back.
“I just wanted to do the right thing letting him know he was going to be a father.”
As well as the community order, Adarabioyo was ordered to carry out 100 hours of unpaid work and pay £200 compensation and £640 court costs.
A 12-month restraining order preventing him from contacting the victim or going near her home was also imposed.