negative result. ..am I still preg?

Hi, I wondered if anyone has experienced anything similar. Im trying for my 2nd baby.i came off the pill for a 2nd time.i had my last pill period end of june & then my 1st norm period end of july.i was expecting my next period end of this month (aug) but it was a no show.i had symptoms like tiredness, ache & very bad cramps but no bleeding.i tested using a clear blue home test but it came back neg.my jobs been stressful atm could this play a part in no period or am I pregnant & its too early to test yet? Thanks for reading this.