I am confused PMS or Pregnancy symptoms...any help?

I have before! I had allllllll the symptoms of pregnancy that are extremely similar to the AF. I was even delayed. I took many pregnancy test and all BFN. Then the day I was going to take another preg test (which would have made me 6 weeks if I was) AF came. So, I might have tricked my own body. Count your days up to about 6-7 weeks, then take a preg test. But the only sure way is a beta test from your doc. BABY DUST!