Took a test yesterday afternoon, negative.

I haven’t even had cramps yet, no change to diet, and I had a month with really low stress levels. I got rid of the app since last period to help reduce stress so nothing has been logged. I don’t think my period has ever been this late though, literally a whole month without it?? I’ve been nauseous at certain smells and sore nipples, but nothing else. Any ideas as to what could be up? Has anyone else had a crazy long cycle like this randomly? We’ve had a tonnnn of sex this month, but other than that nothing is different.