thank you for your query.
you have provided quite an exhaustive list of symptoms, however, unfortunately, none of them are indicative of a pregnancy
Relying on them is futile and pointless.
The only confirmatory way, and reliable way to diagnose a pregnancy, is to have a positive pregnancy test.
Urine pregnancy tests are 97 % reliable, so if you have a negative test, it is highly unlikely that you are pregnant.
Other causes of a missed period are - normally occurring once in a while , stress
disorders, polycystic ovaries
, weight fluctuations etc.
Please consult your gynecologist if you fail to have your period within a few days.