Flu or pregnant

So my period is 5 days away and for a few days now I’ve felt off.. my body aches slightly, right now I have nausea, light headedness for the past few days and beyond tired. Over the weekend I traveled to South Carolina to see my boyfriend and on Saturday I woke up and just felt bad all day long. I have had the flu multiple times and I know when I have it because I run a fever and stomach hurts and I normally throw up but this time I have not had that I just feel rough and down. My boyfriend and I did have unprotected sex 2 weeks ago but he didn’t cum. I was wondering if anyone feels this way or has felt that way and it ended up being early pregnancy symptoms? Anything would help!!