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Dark skinned women can have skin darkening in abdomen similar to linea nigra. If you suspect being pregnant, and have been having periods at expected period time, then the bleeding could also suggest possibility of decidual bleeding. If you suspect being pregnant, visit your doctor/gynecologist at the earliest for thorough examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately). Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately. Take adequate rest. Drink plenty of water.
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