.most tests are not accurate unless your period is already late. Since you only had sex 6 days ago these symptoms are most likely not from pregnancy because it normally takes much longer for the embryp to implant and produce the hormones that cause the nausea etc.

could there be a possible pregnacy??

.you could be. .every time you have sex, even protected, their is a chance you could become pregnant. .what .i meant is it it too early for you to be able to tell if you are and that the symptoms you are having are not the result of being pregnant because it is too early for the embryo to have implanted.

You say you got your period on June 7...so no, you're not pregnant from any sex you had before June 7. If you had unprotected sex after June 7, you could get pregnant from that, but you have to wait until your period is late to test.

It's important to remember that early pregnancy symptoms tend to be exactly the same as PMS symptoms. I'm 13 weeks pregnant, and my only symptom was a late period. I had less symptoms when I was actually pregnant than on previous cycles when I was trying to conceive. I didn't even start gaining weight until I was about 9 weeks along and even then it was about 1-2 lb. Now, my body has definitely changed, but I've still only gained 4 lb.