If one considers, as I do, that language, at its most fundamental level is the simple association of image/object relationships, then one must consider the fetus may develop language utilities at a very early stage.
The fetus can see, hear, experience, taste and, on a primitive level, even learn in utero . . . Most importantly, he can feel—not with an adult’s sophistication, but feel nonetheless.—p. 12
I believe, that external stimuli is responsible for allowing the fetus to develop a sense of “I” through image/object associations.
Mother sings = fetus comfort.
“One of the main means for communication of maternal attitudes and feelings is the neurohormones the mother releases, which increase when she is under stress. These substances cross the placenta as easily as nutrients, alcohol, and other drugs do. In moderation these hormones cause physiological reactions in the child which stimulate his neural and psychological systems beneficially, but in excess they can affect the developing body adversely. Because of the child’s resilience, it is only extreme and, generally, long-lasting stress that leaves marked negative effects, not isolated thoughts or incidents. Moreover, the mother’s love, acceptance, and positive thoughts for the unborn child act as a very strong protection, so he will continue to thrive even if her own situation is troubled. But if his needs for affection and attention are not met, “his spirit and often his body, too, begin wilting” (p. 27).”