Couple questions

I just had some questions.....if we have sex at like.....1am before we go to bed should I log that I had it THAT day technically or the day before? Another question I have is I have irregular periods but I usually start having symptoms 3 weeks before my period starts. Does that mean I'm about to ovulate or I am ovulating or what? I'm trying to figure out exactly when to BD. Glow says I should ovulate this week, but I started having symptoms like nausea, very low appetite, sensitive smell and taste, sore breasts, and a couple others last week. It happens every time and I honestly am at a loss for when to TTC.