66 days since last period 36 days late

Tori

so I have all the pregnancy symptoms I'm late my best friend always realise on me as I come on the day before, but she is coming up to her third period in 2 week I have had no bleeding. I have done urine and look tests both negative but I have all symptoms feeling sick tummy cramps weight gain feeling tiered heart burn sore boobs but nothing.. had blood test 2 weeks ago I did another test today and another negative. .