Only 3 days, which could be normal. But I'm fairly regular. I have a tracker app (because about 4 or so years ago there were twice where I thought I was later than I thought I really was and I think the first time I couldnt' even remember when I had my period the month before). And you can also note when you have sex. In the last year I haven't had a cycle more than 28 days but twice which both was 31 days (which today is 31). But both of those months were over 6 months ago.
I actually prefer to find out by oh crap I'm two weeks late.
But kind of impossible not to take note.
We're not actively trying but not doing anything to prevent it. I was feeling more nausea last night and even threw up. But it could just be in my head and my nerves. The other signs well could be normal pms signs. And I'm always tired so I can't really tell if I'm more tired.
But I've been crampy and spotting (very very light spoting) the last 24 hours.