Okay so ladies, I need your help.

I'm 16 years old. My boyfriend and I have been sexually active for a little over a year now. 

We've had a few small scares and I've had a miscarriage when I didn't know I was pregnant. I'm now scared that I could be pregnant again.. I really can't have a baby, I can't. I'm not ready for it and it could ruin my life. I don't want my parents to know. I'm a month late for my period.. I took a test last week and it looked negative so I threw it away but luckily I took a picture beforehand.. Help?? Is there a faint line I didn't notice before??