I concur with hrsepwrguy.
Although it is difficult to transmit hepatitis C through sex, transmission is possible. Since hepatitis C is a blood-borne infection, transmission can happen if you are having rough sex (sex that involves trauma to the skin) and/or if menstrual blood is present and the skin of the uninfected partner is broken.
http://www.health.com/health/condition-article/0,,20189596,00.html
1 'unprotected oral' = No risk
2 "protected vaginal intercourse"= No risk
"I noticed some blood on my condom"
Don't matter, see answer 2