Af stlill a no show 29 day cycle

Jamishia • 😘😘My two loves caleb jeremie -june23,2017- Carson azariah born-september13,2018-
My last period was april 12-17 i had sex april 15-17 .my project fertile window was april 23-29 i took ovulation tests that whole time both negitive no fertile cm just creamy white. My period is not 3days late and i have frequent urination at times and cramping on and off what could this be?