The idea of a woman becoming pregnant while already carrying a baby sounds like something from science fiction, yet it is a real, rare phenomenon called superfetation. Unlike typical twins, where two eggs are released and fertilized during the same cycle, superfetation happens when a second egg is released weeks later and becomes fertilized while the first pregnancy is still ongoing. Worldwide, only a handful of confirmed superfetation cases exist, making it extremely rare. In these pregnancies,
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