That's the problem with garbage pseudo-translations like the NIV. They are garbage.So what is the fate of the pregnancy when a pregnant adulteress is commanded to be stoned to death (Leviticus 20:10)?
And what is the fate of the pregnancy when a pregnant adulteress is commanded to drink a "bitter water" abortifacient instead and say "so be it, so be it" (Numbers 5:20-28)?
Numbers 5:20-28 NIV
20 But if you have gone astray(A) while married to your husband and you have made yourself impure by having sexual relations with a man other than your husband”— 21 here the priest is to put the woman under this curse(B)—“may the Lord cause you to become a curse[a] among your people when he makes your womb miscarry and your abdomen swell. 22 May this water(C) that brings a curse(D) enter your body so that your abdomen swells or your womb miscarries.”
“‘Then the woman is to say, “Amen. So be it.(E)”
23 “‘The priest is to write these curses on a scroll(F) and then wash them off into the bitter water. 24 He shall make the woman drink the bitter water that brings a curse, and this water that brings a curse and causes bitter suffering will enter her. 25 The priest is to take from her hands the grain offering for jealousy, wave it before the Lord(G) and bring it to the altar. 26 The priest is then to take a handful of the grain offering as a memorial[b] offering(H) and burn it on the altar; after that, he is to have the woman drink the water. 27 If she has made herself impure and been unfaithful to her husband, this will be the result: When she is made to drink the water that brings a curse and causes bitter suffering, it will enter her, her abdomen will swell and her womb will miscarry, and she will become a curse.(I) 28 If, however, the woman has not made herself impure, but is clean, she will be cleared of guilt and will be able to have children.