I bleed the last couple times during sex could it be cause I am ovulating?

Need medical. Evaluation. Possible reasons for bleeding during or after sexual intercourse include: vaginal trauma, sexually transmitted disease, iud, cervical cancer, cervical polyp, combination oral contraceptives (cervical erosion), endometriosis, vaginitis, ; adenomyosis.
Need exam. It could be, but a doctor should take a look to make sure there is not a more mechanical reason for the bleeding.