Musar к Ирмеяу 1:4

The fact that a pregnant woman did not experience a miscarriage due to the stench of the meat on the altar corresponds to the statement of Rabbi Akavyah that we must be aware of the smelly drop of semen our body originates from.. This subject is mentioned in Yuma 82 where we are told about a pregnant woman who experienced a terrible urge to eat on the Day of Atonement and whose predicament was presented to Rabbi Yehudah Hanassi. The latter instructed that one should whisper to this woman that the date was the Day of Atonement. When this advice was followed the woman's hunger pains subsided. Concerning this incident they applied the verse in Jeremiah 1,5: "I have known you before you were even formed in the womb." The baby that this woman gave birth to was the famous scholar Rabbi Yochanan. The Talmud next reports about another similar case involving Rabbi Chanina and a pregnant lady. The same procedure was followed, but it did not assuage the lady's terrible urge to eat. The bystanders applied to that lady Psalm 58,4: "The wicked are defiant from birth." The child born from that pregnancy was a certain Shabtai who hoarded produce during years of drought and sold it at exorbitant prices. We draw a parallel from the experience of pregnant ladies who passed the Temple and who did not abort an embryo due to the unpleasant smell of the sacrificial meat to women who did not feel revolted by the smell (or awareness) of their own flesh and blood. According to Rabbi Akavyah the mere thought of it should have been revolting.