Jesy Nelson/Instagram Jesy Nelson welcomed twin daughters, Ocean and Story, with boyfriend Zion Foster on May 15 The babies were born early, weeks after the Little Mix alum safely underwent an emergency surgery "Our beautiful baby girls decided to come at 31 weeks plus 5 days," the couple wrote in a joint post," adding: "It all happened so quickly" Jesy Nelson'slittle ones are officially here! The Little Mix alum, 33, revealed in anInstagram poston Sunday, May 18, that she welcomed her twin daughters, Ocean and Story, with boyfriend Zion Foster on May 15, weeks after safely undergoing an emergency surgery. "So … Our beautiful baby girls decided to come at 31 weeks plus 5 days," the couple wrote in a joint post. "It all happened so quickly, but we are so blessed that they are here with us, healthy and fighting strong! We've never felt more in love 🥹." "Everybody, meet Ocean Jade Nelson-Foster and Story Monroe Nelson-Foster. Born on 15.05.2025 🌊📖," the pair concluded. Nelson and Foster shared a sweet photo alongside their message — a side-by-side shot that showed them holding their newborns in the hospital after their birth. Foster laterresharedthe baby announcement on his Instagram Stories, writing, "My princesses are here 🥹🙏🏽 ❤️ Thank you God 🤲🏽." The PEOPLE Puzzler crossword is here! How quickly can you solve it? Play now! Jesy Nelson/Instagram Nelson first announced her pregnancy onInstagramon Jan. 12, sharing a Polaroid-style photo of herself and Foster with the caption: "She's eating for 3 now 👶👶." Months later, in March, Nelson revealed that the twins were monochorionic, diamniotic (MCDA) and sharing a single placenta. In an emotional video shared at the time, the singer explained that "one baby might take all the nutrients" from the placenta, or "the other might, which — really awful to say — could lead to both babies dying." A few days later, Nelson sharedan update, revealing that she was experiencing symptoms that doctors had advised her to "watch out for," including her stomach tightening and difficulty breathing. She captioned the video, "TTTS update," referring to twin-to-twin transfusion syndrome. After a checkup at the hospital, Nelson said doctors determined that "they have to perform the procedure, which is obviously not what we wanted to happen," adding, "But it's necessary because it's going to give our babies the best chance of surviving." Never miss a story — sign up forPEOPLE's free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories. View this post on Instagram A post shared by @jesynelson In April, Nelsonshared an update on her emergency procedureon her Instagram Stories, filmed from her hospital room. "We just wanted to come on here because we are another week further along and we feel so grateful and blessed that these little babies are still going strong," she said at the time. "And we just wanted to also thank you so much for all your support and beautiful messages," Nelson continued. "You guys have been so lovely. We've seen all of your lovely messages and stories, and it's just really helped us keep going. So we just wanted to say thank you for that," continued Nelson. "And yeah, we're still in here [at the hospital], going strong." Read the original article onPeople