Consider to whom thou hast done this - Perhaps the best sense of this difficult verse is this: "Thou art our Father, we are thy children; wilt thou destroy thy own offspring? Was it ever heard that a mother devoured her own child, a helpless infant of a span long?" That it was foretold that there should be such distress in the siege, - that mothers should be obliged to eat their own children, is evident enough from Leviticus 26:29; Deuteronomy 28:53, Deuteronomy 28:56, Deuteronomy 28:57; but the former view of the subject seems the most natural and is best supported by the context. The priest and the prophet are slain; the young and old lie on the ground in the streets; the virgins and young men are fallen by the sword. "Thou hast slain them in the day of thine anger; Thou hast killed, and not pitied." See Deuteronomy 4:10.
The sense is: “See, Yahweh, and look! whom hast Thou treated thus? Shall women eat their fruit - children whom they must still carry?” the swaddled child being one still needing to be nursed and borne in their arms.