Olympic swimmer Michael Phelps may be busy helping his fiancée Nicole Johnson take care of their little baby boy Boomer, but the couple already have plans to add more members to their family. Phelps, who recently finished his last Olympic race in Rio de Janeiro and won six medals, is enthusiastic about having another baby. After he won his last gold at Rio, the swimmer announced his plans to retire from the sport and focus on starting a family.

“We’ve talked about more [children]. We don’t really know how many more we want,” the Olympic gold medalist told People on Tuesday, “We would love a girl. Love, love, love a girl. We wanted a boy first, just in case we did have other children, [so] he could be the protector of his younger sibling or siblings.”

“So we started off on a perfect note: We got a boy,” Phelps added, “We got a beautiful, healthy baby boy, and we’re looking to continue to grow our family.”

However, Johnson and Phelps aren’t having another baby any time soon. “I think we’re gonna have some fun with Boomer before we make that next choice of trying for another one,” the swimmer said.

The 31-year-old is also looking forward to his retirement, but he won’t be hanging his goggles any time soon. “Even though I’m done in the pool, I’m not 100 percent done. Being able to teach kids, not only water safety but healthy and active sports,” the Team USA Swimmer told E! News after his last win at the 2016 Olympics.

Nevertheless, Phelps will certainly spend ample time with his family now that he isn’t training for the Olympics. He also has his wedding to Johnson to attend later this year. The former Miss California wants a “small and intimate” ceremony with close friends and family.

Meanwhile, Phelps said he is fine with three-month-old Boomer taking up swimming. “If he [Boomer] wants to get into swimming, that’s fine. If he doesn’t, I’m fine with that too,” Phelps said. “I was never pushed as a kid to put more time into the pool, or play other sports. My mom kinda let me make the call and choose what I was gonna do.”

Michael Phelps and Nicole Johnson U.S. Olympic swimmer Michael Phelps and fiancée Nicole Johnson attend an NBA game at Talking Stick Resort Arena in Phoenix, Arizona, Feb. 10. Photo: Getty Images/Christian Petersen