Michael Phelps And His Wife Nicole Are Expecting Baby No. 2

Double up on the swimmies!

Michael Phelps and his wife Nicole announced Tuesday that they’re expecting their second child. The baby will join big brother Boomer, who turned 1 in May.

Both Michael and Nicole posted the same photo on Instagram to share the happy news.

Number 2 on the way!!!! So excited!! Wonder if it's a boy or a girl??

A post shared by Michael Phelps (@m_phelps00) on

Another photo popped up on Boomer’s Instagram page, with the caption, “So excited to see what mama is having!! Do I get to have a brother or a sister?!?”

So excited to see what mama is having!! Do I get to have a brother or a sister?!?

A post shared by boomer phelps (@boomerrphelps) on

It’s been a year since Boomer and his parents took the world by storm at the Summer Olympics in Rio. Phelps retired from swimming following the Games with a total of 23 Olympic gold medals. Since then, he’s been focused on his family, friends and finding new passions.

“We’re going through life everyday happy and blessed with what we have,” he told People of expanding his family. “But I hope to have more kids in the future.”

Now’s the time, Phelps! Congrats.

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RIO DE JANEIRO, BRAZIL - AUGUST 11: Michael Phelps' fiancee Nicole Johnson, holds their son Boomer Phelps on day 6 of the Rio 2016 Olympic Games at Olympic Aquatics Stadium on August 11, 2016 in Rio de Janeiro, Brazil. (Photo by Jean Catuffe/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 11: Michael Phelps' fiancee Nicole Johnson, holds their son Boomer Phelps on day 6 of the Rio 2016 Olympic Games at Olympic Aquatics Stadium on August 11, 2016 in Rio de Janeiro, Brazil. (Photo by Jean Catuffe/Getty Images)
USA's Michael Phelps' son Boomer (C) looks at his grandmother Deborah while in the arms of his mother Nicole Johnson during swimming events at the Rio 2016 Olympic Games at the Olympic Aquatics Stadium in Rio de Janeiro on August 11, 2016.   / AFP / Odd ANDERSEN        (Photo credit should read ODD ANDERSEN/AFP/Getty Images)
USA's Michael Phelps' son Boomer (C) looks at his grandmother Deborah while in the arms of his mother Nicole Johnson during swimming events at the Rio 2016 Olympic Games at the Olympic Aquatics Stadium in Rio de Janeiro on August 11, 2016. / AFP / Odd ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 11:  Boomer Phelps wears ear protection during the evening swim session on Day 6 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 11, 2016 in Rio de Janeiro, Brazil.  (Photo by Al Bello/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 11: Boomer Phelps wears ear protection during the evening swim session on Day 6 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 11, 2016 in Rio de Janeiro, Brazil. (Photo by Al Bello/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 11: Michael Phelps' fiancee Nicole Johnson, holds their son Boomer Phelps on day 6 of the Rio 2016 Olympic Games at Olympic Aquatics Stadium on August 11, 2016 in Rio de Janeiro, Brazil. (Photo by Jean Catuffe/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 11: Michael Phelps' fiancee Nicole Johnson, holds their son Boomer Phelps on day 6 of the Rio 2016 Olympic Games at Olympic Aquatics Stadium on August 11, 2016 in Rio de Janeiro, Brazil. (Photo by Jean Catuffe/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 11:  Boomer Phelps wears ear protection during the evening swim session on Day 6 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 11, 2016 in Rio de Janeiro, Brazil.  (Photo by Al Bello/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 11: Boomer Phelps wears ear protection during the evening swim session on Day 6 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 11, 2016 in Rio de Janeiro, Brazil. (Photo by Al Bello/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 11:  Nicole Johnson, fiancee of Michael Phelps of the United States, holds their son Boomer during the evening swim session on Day 6 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 11, 2016 in Rio de Janeiro, Brazil.  (Photo by Al Bello/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 11: Nicole Johnson, fiancee of Michael Phelps of the United States, holds their son Boomer during the evening swim session on Day 6 of the Rio 2016 Olympic Games at the Olympic Aquatics Stadium on August 11, 2016 in Rio de Janeiro, Brazil. (Photo by Al Bello/Getty Images)

This article originally appeared on HuffPost.