missed two pills

Ok i just realized that i missed 2 pills in a row. i am on the third week, so i am supposed to get my period next week. I read the package insert, which said to continue taking them regularly until Sunday, then throw out the pack and start a new one. I know i cant have unprotected sex for a week, and i wont be anyways. But i did have sex a few days ago. Does this mean i can get pregnant? Also, am i going to get a period? And how am i supposed to know if i may be pregnant? Please help- im really scared.

monie