Having 1 Baby Normal?

[ryan422]

I HAVE HAD A FAT FEMALE SWORD FISH IN THE BREEDING TANK FOR JUST OVER A WEEK,
SHE GAVE BIRTH TO ONE BABY ABOUT 4 DAYS AGO,
THERE WERE NO, DEAD ONES, AND NO UN-BORN EGGS, THERE IS NO WAY SHE OR OTHER FISH COULD HAVE EATEN ANY OTHER BABYS,

DOES ANYONE KNOW IF HAVING 1 BABY IS NORMAL? WILL SHE HAVE MORE?

AND SHE IS STILL FAT?

THANKYOU
RYAN