Am I Pregnant? This is negative right?

This photo is took april 12 (14-15 days after unprotected sex but no penetration; (sorry for the unclear photo because I was going to throw it away))  and the next day I had a bleeding which is I don't if it's a real period. I know I have a dry discharge because I don't felt wet rarely I am not sure if it's really because sometimes it's color brown and yellow. When check my V it is looks like white like a milk. I felt like I'm on period because I felt the thing when on period or releasing a blood. When I check it there's no blood or whatever is releasing just my dry undies. I am so paranoid.