Insane!

Que
This is my first post since joining. My period is supposed to begin 8/4. I'm so miserable. I took a test 7/24 which was negative (took longer than usual to read). For the last week I have been nauseous, experiencing back pain terribly, cramps like a period, gas from both ends and so tired I can't stand myself.  My husband says  pregnant as well as the mail tech at nail salon. Funny thing is I just met her.  Anyways,  so confused and miserable.