“Plain Truth” by Jodi Picoult (post 4): Halfway through, Katie seems to have recanted all her claims of amnesia, except for how she got pregnant…

…and it appears that she remembers that, too, and that the only thing she truly does not remember is how the baby died, because someone else killed the baby while Katie was asleep.

Can it be that the first half of this novel presents a character with amnesia and that the second half will say just kidding?

The discrepancy between the two lie detector tests has not been explained.