I know of one woman years ago who was huge and didn't know she was pregnant and thought she was having severe heart burn when she delivered a live baby.
Also, in my own 3rd pregnancy I went into labor and delivered to the astonishment of the entire birthing floor an absolutly painless, no drugs whatsoever, full term birth (7.8 lbs) and went home 6 hours later wearing size 6 jeans.
The not knowing she was in labor part is within the realm of possibility, but not knowing a 7 lb object just dropped into the toilet is not. A full term baby head will not go through a toilet.
When I was a child there was a black woman who played on my mother’s softball team. She was pregnant and didn’t know it and she ended up dying of Toxemia.
I know a woman who was 5 months pregnant and didn’t know it, never felt anything and only found out because she finally went to the doctor because her periods were different than before. She wasn’t overweight though she did feel she was getting a little chubby.
A doctor described how it could happen on one of those Discovery health programs.
Oh yeah and my DIL never had a labor pain with her first child, she just threw up bile every few minutes. She was absolutely shocked when she delivered her 2nd child because she didn’t know it was going to hurt that bad.