Symptoms truly don't mean much because they can be associated with any number of other things. However you did have sex around your fertile time so there's definitely a chance! My last pregnancy I was an emotional, crying mess the day before I took a test confirming that I was, in fact, pregnant. So who knows? Maybe you are, maybe you're not. Definitely update us when you know!
I think that its still too early to have so many of the "pregnancy symptoms". Those don't truly start to show up until you're atleast 2 or more months along when your body has built up enough of the pregnancy hormone hcg. The symptoms you're having could be signs of pms due to an impending period. But I would wait until my period is expected,if it doesn't come take a pt with first morning urine in 2 day intervals. (Like if your test is negitive the 1st day,wait 2 more days & test and so on).
i would say wait for you to get your period or take another test friday or this weekend. if it comes late take another one.