[Avodah] Can a besula become pregnant?

[Rich, Joel]

I remember once hearing that there's a chazal somewhere, according to which it is impossible for a besula to become pregnant from her first sexual act. Is this accurate? If so, can someone point me to that chazal? And if there *is* such a chazal, does anyone argue on it?

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רש"י בראשית פרשת וירא פרק יט פסוק לו
(לו) ותהרין וגו' - אף על פי שאין האשה מתעברת מביאה ראשונה, אלו שלטוי בעצמן והוציאו ערותן לחוץ ונתעברו מביאה ראשונה:
Kt
Joel rich
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