Thanks for the query.
In case your friend has a pregnancy test positive and has severe abdominal pain, ectopic is a possibility. The other causes could be ovarian cyst or torsion, uterine tumors, pelvic infection, renal stones, gastritis and even appendicitis.
Kindly consult a Gynecologist for an examination and an ultrasound to find the cause and treat it accordingly.
Hope this helped.
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