Blood in my cum

Hello, yesterday I had the urge masturbate (quite normal when your 15 years old and single) and when I had climaxed, I noticed my semen had a reddish tint to it. Naturally, I started panicking and I grabbed my laptop and typed into google "I CAME BLOOD!" and was relived to see multiple threads. However, mine didn't really fit any of them except for maybe a popped blood vessel, which might make sense because I pulled my penis down very suddenly and it might have caused a blood vessel to pop. I felt no discomfort before or after, and when I peed afterwards there was no blood and no discomfort, so I went to bed, still afraid. Around 15 minutes ago, still deathly afraid, I decided to cum again to see if I had actually came blood or if it was just the lighting in the bathroom (also I was turned on, like usual) but it was a little different when I came this time. It had more of a very light orange tint but with a speck of bright red blood in it, just a speck. Once again no discomfort or anything. I'm a little freaked out and I can't really just go up to my mom and say, "hey mom, I was masturbating and I ejaculated with a little blood in it" considering I live with only my mother and my sister. I'm uncut and I haven't had any sexual activity in around a year, so I know it can't be an STD. Help, answers, anything? I have my fingers crossed for popped blood vessel.