Now I wait... Af due 9/15

I'm sure I'm out this month... Took a test @11dpo negative and took another today 13 dpo.. Negative. My breast have little to no soreness, twice brushing my tongue made me gag (more than usual) and nauseous, the third time brushing my tongue I throw up... Yesterday and today I've had diarrhea. (Sorry tmi) and (although not reliable) my cervix is high, firm but closed and has been closed every time I've felt it. Cm is more on the watery side.. (it's been all over the place this month). Any thoughts? Holding on to the littlest of hope but not getting my hopes up.