Exclusive | Pregnant Jersey Shore star Sammi Giancola declares it wasnt her choice to have ex Ronnie at gender reveal party

She’s not that sweet.“Jersey Shore: Family Vacation” star Samantha “Sammi Sweetheart” Giancola is setting the record straight on the guest list at her gender reveal — she did not invite her ex Ronnie Ortiz-Magro.“Umm, that wasn’t my choice,” she told The Post.“It was basically like, he is part of the cast and I didn’t really have a choice with that.”Giancola, 38, had an on-and-off again relationship with Ortiz-Magro, 39, her “Jersey Shore” co-star, from Season 1 of the original series, which began in 2009, until the couple officially called it quits in 2014.After a decade apart, she came face to face with her former flame on the MTV show’s spinoff “Jersey Shore: Family Vacation” last year — and has accepted that filming with him is part of the TV gig.“He’s just a part of the group and I’m not going to exclude him, like if he’s there, he’s there,” said Giancola, who is engaged to former Karma bartender Justin May.

The reality star, who chronicled her IVF journey on the show, already knew she was expecting a boy prior to the reveal — which took place last month in Seaside Heights and will be shown on the next season of “Family Vacation.”“When you go through IVF and you have embryos and you get them genetically tested, you do have the option to see what they are sexwise,” she explained.“So I just knew when we put in the best embryo that we could … what the sex was because I looked, it was right next to it.But people do not have to know that.

I just knew what we had.”The Hazlet, NJ native went through “multiple” rounds of fertility treatments, and admitted that she considered giving up.“It’s very hard when you’re in the thick of it and things are not working out the way that you want them to.You almost are like, ‘I don’t know if I can go through this again,’ because it definitely takes its toll mentally and physically on your body.”The mom-to-be, who is due in August, also dished on th...