2mnths miss period and period like cramp with thick white creamy discharge and both hCG and hpt negative. Plz what can be wrong. Give birth 8 mnths?

Likely nothing wrong. Menstrual irregularities are not uncommon and anovulatory cycle is a common cause. If you miss more than two periods it would be time to see your doctor. Consult this site for more information on this topic. http://www.nichd.nih.gov/health/topics/menstruation/conditioninfo/Pages/causes.aspx.