Thanks for the query.
Swelling of the vagina and pain without a history of sexual intercourse in pregnancy, can mean a vulval hematoma.
It needs immediate attention. The causes could be local trauma, that has got unnoticed, high blood pressure, bleeding disorders or side effects of medications like aspirin and heparin.
Kindly consult a gynecologist immediately for an examination. Antibiotics, painkillers, and decompression may be needed for the symptoms.
Hope this helped.
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