This must have been one fat active duty sailor that nobody could notice she was pregnant.
I knew a woman who was not aware she was pregnant until she went into labor.
It wasn't "fat" that hid her pregnancy. Just the opposite, she was tall and slim, very fit, and i guess the baby had lots of room to stretch out.
There was a reality show for awhile that told stores of women with unexpected deliveries.
I couldn't figure out how you could not feel the baby moving, especially toward the end of your pregnancy. But I'm a short person who did carry the baby where no one could mistake whether I was pregnant or not.
Which asks the question of how the porker got pregnant, but as I remember, sailors will boink anything..............