“So close now gorgeous ❤️❤️❤️,” one wrote.
“You look amazing 😍😍,” another remarked.
“🙌 wow! Awesome that you shared this! ❤️,” a third said.
Alex seems to be reaching the end of her pregnancy, which was announced in January this year.
“I wonder if you’ll have your Father’s eyes? Will you be stubborn like your Mother? See you soon little darling ✨,” she wrote alongside a black and white image of herself sporting a much smaller bump.
It is her first baby with boyfriend Carson Jory, but her second child – her first son, Elijah, is now 10 years old.
Alex shot to fame on season four of The Bachelor, where she won Richie Strahan’s heart and finished the show by beginning a relationship with him.
The couple dated for a year, but eventually called it off.
The model then appeared on the second season of Bachelor in Paradise, where she began a relationship with Bill Goldsmith.
However, their union was only short-lived, and they soon separated.
Alex announced her new relationship with Carson via Instagram in December this year.
The soon-to-be mum-of-two shared four black and white photos of herself hanging with her new beau, captioning them with “Nice to meet you Mr Jory 💫”.
They celebrated their pregnancy a few weeks back with a lavish baby shower, with Alex sharing adorable snaps of herself with Carson and Elijah.
The ex-reality star has been candid with fans throughout her pregnancy, often sharing her excitement via poetry on her Instagram page.
She also debuted a transformation prior to birth, dyeing her famed blonde locks a deep auburn colour, seen tied half-up in the bump shot.
Alex has also launched Pregnancy, Birth & Beyond while pregnant, a series of Instagram lives focused on birth and pregnancy advice.