Bleeding after masturbating

I'm 10 weeks Prego tomorrow and I masturbated (clit stimulation only!) Until climax. I went to the bathroom soon after and I started having bleeding. I know it was from this cause I also masturbated once before at around the 5 week mark the same way and experienced the same bleeding (pic of the blood this time) I'm definitely not masturbating again till I know what's going on or I have this baby. Is this normal? Has anyone else experienced this? I'm kinda freaking out.