Talk to Gynecologist on Cramps After Periods

Aoa Dr, I am trying to concieve naturally since 1year. this month mujhe periods 3 days late huy thy, just 1.5 day bleeding huy fresh blood and dark brown. normally mujhe 3 days hoty han, but now after periods from 8th day I have pain in lower abdomin left and right side, with white creamy discharge. Aisa first time hua h mery sath, period cycle regular h. pregnancy strip test b neg h.. phr pain and discharge kun ho rha h,, am really worried,, normally discharge 12 day s start hota h mujhe