What is it that you want us to say? Do you want us to say you are pregnant? Because we can say that - but it doesn't make it true.
The symptoms you are having are honestly so general they could be pms and not related to pregnancy at all.
Did you know that
most women ovulate 14 days BEFORE their period is due? You had sex 6 days before your period was due. That doesn't mean you couldn't have gotten pregnant, you could have. But you would not know yet. It is too early.
Did you further know that it takes UP TO 5 days for the zygote to implant on your uterine wall? In which case, your body would not even know it was pregnant at this point. That is why it takes 14 days before a pregnancy test will be positive - because it takes that long for pregnancy hormones to build up. Only after your body has enough pregnancy hormones to make a pregnancy test positive, would you begin to have symptoms.
All the symptoms you have had a vague and could be something else. Symptoms are not a good way to determine pregnancy. Pregnancy tests are a good way to determine pregnancy.