>>> AFTER MAKING HER OLYMPIC DEBUT IN TOKYO LAST SUMMER, SWIMMER ASHLEY IS EMBARKING ON ANOTHER TEST OF ENDURANCE. MOTHERHOOD. SHE IS DUE TO HAVE HER FIRST CHILD IN MAY. BRYAN MIMS CAUGHT UP WITH THIS MOTHER TO BE AT THE POOL WHERE HER TRAINING IS IN FULL SWING. >> Reporter: LET'S DIVE RIGHT IN TO THE BIG QUESTION, BOY OR GIRL? >> WE ARE HAVING A BOY. MY HUSBAND COULD NOT WAIT TO FIND OUT SO WE FOUND OUT AS EARLY AS POSSIBLE. >> Reporter: THAT WAS LESS THAN THREE MONTHS AFTER SHE SWAM A 10 KILOMETER IN THE TOKYO OLYMPICS FINISHING IN SEVENTH PLACE. HER HUSBAND OF SIX YEARS, DEREK , GOT THE NEWS 1st. HE KEPT A SECRET, EVEN FROM ASHLEY, UNTIL THANKSGIVING. >> THE DOCTOR TOLD HIM AT 11 WEEKS AND I FOUND OUT WITH OUR FAMILY AT 60 WEEKS. WE DO NOT HAVE A NAME, THAT IS SOMETHING WE HAVE NOT AGREED UPON YOU. >> Reporter: THIS HAS BEEN ASHLEY'S DREAM, TO BE A MOM. DESPITE HER PREGNANCY, OR MAYBE EVEN BECAUSE OF IT, SHE IS STILL IMMERSED IN HER OTHER PASSION, SWIMMING. >> AFTER SWIMMING WAS THE ONLY THING THAT REALLY MADE ME FILL ETTORE. I HAVE BEEN IN THE WATER FOR TIMES A WEEK. I'M TAKING IT DAY BY DAY. >> Reporter: WHAT HAPPENS IN 2024 WHEN ANOTHER OLYMPICS COMES CALLING? THE DUKE GRADUATE BECAME A WORLD CHIPPING IN UNDERWATER SWIMMING. AT THE AGE OF 32, SHE WAS THE OLDEST SWIMMER TO MAKE HER OLYMPIC DEBUT AFTER THREE PREVIOUS ATTEMPTS. IS SHE NOW AIMING FOR PARIS? >> THAT IS TO BE DETERMINED. INITIALLY WAS MY PLAN BUT, MY THOUGHTS HAVE KIND OF CHANGED AND I'M DEFINITELY OPEN TO THE IDEA. I HAVE ALWAYS LOVED THE IDEA OF A COMEBACK AND A CHALLENGE. THAT COULD DEAFLY BE IN THE CARDS. >> Reporter: WHAT IS DEFINITELY IN THE CARDS IS TO BE IN THE WATER AT THE AQUATIC CENTER. >> BEING IN THE WATER RELIEVES PRESSURE OFF THE JOINTS. OBVIOUSLY I'VE ALWAYS LOVED IN THE WATER. >> Reporter: A NATIVE OF NEW YORK STATE, SHE PLANS TO STAY IN CARY FOR THE LONG RUN AND RAISE A FAMILY. >> I ALWAYS WANTED A BIG FAMILY. I NEVER REALLY EXPECTED TO KEEP SWIMMING THIS LONG. CERTAINLY NOT 10 YEARS AFTER I GRADUATED. >> Reporter: SHE HAS GONE THE DISTANCE, AND SHE HAS HIT HER STRIDE. >> A LOT OF ENDURANCE. RUNNERS AND CYCLISTS DON'T PEAK UNTIL THEIR MID-30s. YEAH, I'M INTERESTED TO SEE WHAT I COULD DO. >> Reporter: SHE WILL KEEP DIVING IN TWO GREAT THINGS. BRYAN MIMS, WRAL NEWS, CARRIE. >> SHE HAS BEEN WATCHING THE WINTER OLYMPICS AND SAYS CROSS- COUNTRY SKIING IS PROBABLY THE