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You can suspect pregnancy if hot flashes are accompanied by other pregnancy symptoms, such as: 1  Nausea. 2  Dizziness. 3  Morning sickness.  Surge in 1  emotions. Vaginal discharge.  Inability to withstand certain smells.
Though it is normal to have hot flashes during pregnancy, you should make sure it is not a fever. Fever could imply an infection and may lead to serious complications. If you find something wrong within the body, you should consult your healthcare provider to diagnose the right cause. [ Read: Fever During Pregnancy ]