What Should Your Cervical Mucous Be Like Just Before Your Period Do You Think It's Normal To Have Blood Tinged Cervical Mucous 3-5 Days Before Your Period?

Do you think it's normal to have blood tinged cervical mucous 3-5 days before your period? - what should your cervical mucous be like just before your period

I'm pregnant, I check to see if my fertile mucus, but I check on my bike, but I want to know if someone is a legal issue of blood before menstruation. I know it is not for the cervix or vagina.