I had unprotected sex a few days before my period was due, I got my "period" a few days late but was very light and only 5 days which is not normal for me, I have taken several home pregnancy tests and all came back negative but still have lots of symptoms... this would be my second pregnancy. I am very tired, sick to my stomach, tender boobs, no appetite and feeling like gas bubbles now and then. Can I be pregnant?

There is a SLIM chance. Nothing is impossible, but since you did get a period and negative tests, I'm saying it's a "slim" chance.

When in doubt, ask your doctor to run a blood test. It IS possible to bleed while pregnant.