chemical pregnancy?

Me and my man have just started our ttc journey. My period was due on March 15th-16th. 
Being the impatient person I am, I began testing yesterday, and got what I believed to be my bfp. I took two test, in the morning and then at night, because I didn't believe the first faint line was real. They were both indeed 2 very faint lines at 11dpo...... however, today I began bleeding and it's on the heavy side of my normal period. I'm so discouraged, and honestly feel like this is some cruel joke. I'm all in my feelings.... I just don't really get what happened? Where did it go wrong? And if I was even pregnant at all.