Can inserting objects in vagina induce vaginal bleeding?

Hello doctor,

I am 20 years old and have recently started masturbating regularly. When I was 18 years old, I tried masturbation thrice using only my fingers. On the third occasion, I noticed some blood on my fingers, possibly because I inserted them deeper while sitting. As a result, I stopped after that. However, now it has become a daily habit for me. The issue I am facing is that two days ago, while masturbating, I used three pens (and have used other objects in the past). When I removed the pens, they were soaked in mucus as expected, but blood was also present. I did not worry too much about it, and the following day, I masturbated using only clitoral stimulation. However, when I attempted to insert even one finger, I noticed blood. Even today, I am still experiencing bleeding, including on my clitoris. Surprisingly, I do not feel any pain, cramps, or discomfort. Should I be concerned about these symptoms? Additionally, I must admit that I am overweight and currently on a diet after consulting with a dietician.