Oxford Insurance.freedom Plan Need Help W/ Oxford Health Insurance (Freedom Plan)...???

Need help w/ Oxford Health Insurance (Freedom Plan)...??? - oxford insurance.freedom plan

My employer has Oxford Health Insurance, but they said I had a deductible of $ 2,000. What does this mean? I have my ID, I can go to the doctor without paying? Also .. I am now free birth control, or should I pay? Please help ... I am what benefits I can get confused ...