TTC After Depo Shot. Please Help!

I Am A Bit Confused. I Am Officially Off Of The Depo Shot Now. I Have Been TTC Ever Since I Discontinued It As Of November 2013. I Usually Get My Periods Again ASAP, But This Time It Did NOT Happen. I Was On The Shot For A Full Year, But I Do Not Have A Period As Of Today. I Have Symptoms & Pains, But I'm Not Sure What They Are From. My Doctor Is Not Sure What Is Happening. Is It Possible That It May Take Me Years Before I Am Able To Have My First Child? I Have Heard Some Pretty Bad Stories About The Depo Shot & I Am Scared.