Is a little blood after masturbating normal (penetration involved)

So usually when I masturbate, I do clit stimulation but tonight I decided to try something new for myself and well, I got a little blood when I went to the bathroom to pee after. It wasn’t that much and I am sexually active. I was told that my cervix is inflamed and that it could be from sex and have been tested clear of STDs/STIs so sex is the only reason for it. I’m just worried because this has never happened with me and I’m just thinking it’s because I decided to penetrate myself, with a sex toy ofc, my walls got irritated. It was just a little blood and then I went to wipe again nothing there.