The reality star, who was paired with Dani Dyer on the 2018 series of the ITV2 show, revealed he has welcomed a baby girl with one of his “great friends”.
Jack posted a picture of him holding his daughter, who has been named Blossom, on Instagram, and also explained his decision to keep his impending fatherhood secret.
He said: “I’m normally a very open book and share most of my life on my social media. This blessing I chose not to. I’m just a normal geeza, who went on a tv show, which throws you straight into the public eye…which I will forever be grateful for.
“However, I knew for myself I needed personal time and to keep this part of my life private to prepare for this new responsibility and part of me that will change my life forever.”
Describing his daughter as “undoubtedly the best thing that has ever happened to me”, he continued: “It’s true what they say, the instant feeling of love and connection you have with your child is a feeling like no other.”
Jack also revealed that he is not with Blossom’s mother, although they have been friends for a number of years.
He said: “I want to thank my family and friends for your continued support, also to my little girl’s mother, who has been totally AMAZING throughout. Although we are not together we are great friends as we have been for many years and our priority is co-parenting our beautiful baby girl. Both mum and baby are doing great.
“I am now a proud dad to a healthy baby girl Blossom Fincham born 8lb 2oz on 24th January 2020.”
Fans were left shocked by Jack’s surprise announcement...
Can’t believe jack fincham has done a Kylie Jenner— Ellebelle (@ellebellenic) January 25, 2020
tf you mean jack fincham from love island is a DAD where did this come from??¿— hannah (@tmhannahes) January 25, 2020
jack fincham is a DAD. WHAT THE FUCK— gee🪐 (@georgiaanais_) January 25, 2020
JACK FINCHAM IS A DAD!! WHO? WHAT? WHERE? WHEN? WHERES HE BEEN HIDING A PREGNANT WOMAN FOR 9 MONTHS— 🧚🏼♂️ (@ambersgill) January 25, 2020
Jack Fincham really out there pulling a kylie Jenner but doing it better. Literally would never have suspected a thing.— 🧚🏼♂️ (@ambersgill) January 25, 2020
woaaaah hang on a minute... when was jack fincham expecting a baby?! ... is this public knowledge orrrr??🤔🤔— kayla louise ◟̽◞̽ xox (@kayla_louise96) January 25, 2020
Wtf Jack Fincham is a dad now?!?! Where tf did that come from— 🤦🏼♀️Louise🤦🏼♀️ (@Louise_Emson) January 25, 2020
The 28-year-old former pen salesman won the fourth series of Love Island with Dani, with the pair embarking on a relationship outside of the villa.
Jack confirmed he had split with Dani nine months ago, 10 months after they first met, with Dani later claiming it was “just one of them things”.
MORE LOVE ISLAND:
This article originally appeared on HuffPost.