Movie I remember from a long time ago

Alright, so I only remember this one particular scene where a woman is lying down beside some sort of pool with some sort of monster in her belly, pressing up in a kind of square like shape. She was knocked out and a man was crouched over her. The next thing I know an angel appeared, a sword positioned above her to ‘heal’ her or something. Some details are she accidentally swallowed the monster thing and it’s not exactly a horror movie, I am sure. Sound familiar to anybody?

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