What causes frequent cramps with vaginal bleeding?

Hello doctor,

After two weeks of LMP, I had mild cramps and non-stop light vaginal bleeding, it lasted for three days. I experienced non-stop light vaginal bleeding, once again after this month periods. This morning, I started to have light bleeding again. Given my concerns, I had blood work this week; my blood counts are normal; my thyroid, hormones and pituitary gland levels are all normal; and I am not on birth control. However, my urinalysis revealed that my erythrocyte is 25, my leukocyte esterase is 0.3 mg/L, and my eGFR is 88. Plus, my ferritin is 10. Initially, my doctor believed my abnormal bleeding between my periods was due to a hormone imbalance but we now know that it is obviously not the case. Can this be due to gynecological cancers? I am only 32, I am healthy, I am not on birth control, I am not pregnant, I am not on hormones, and the possibility of having cancer makes no sense to me. I would appreciate talking to someone because I am terrified.