Missed Period

Jennifer

We’ve been trying for 3 months and my period is 8 days late. It almost feels ironic because we are separated right now, but tests have come back negative before my period. No sign of AF and I have EXTREMELY regular periods. I’ve never missed one until now. Are there any reasons for me having missed my period more likely than pregnancy ? (Neither of us have any health issues, both young & no known fertility issues.)