5 days late

My period is 5 days late, it’s very regular and always comes at 30 days. Occasionally it will come a day earlier or later, but never 5 days. I plan to take a test but am in the middle of travel. So it’ll have to wait. I don’t believe I’m pregnant due to the fact the last time I had sex was 3 months ago, and I’ve had my period twice since. Lately I’ve been feeling a bit sick and have lost a few pounds so I can’t tell from that, though my tummy does seem a bit bloated which could also be a sign of AF. Has anyone else continued to have their period but end up pregnant? Thoughts? Suggestions? Similar experiences?

I’m a happily married,23, but my husband and I are military stationed in two different places.