What is normal vag discharge??

S

I’m in my second trimester - almost 20 weeks. I have spotting every couple weeks and discharge about every week. When I have the spotting the discharge is blood tinged. There is not bleeding in the toilet but the tissue is pink or has spots of blood. I did let my doctors office know. I have an appt on Monday so I wasn’t going to go in until then. I have photos that I posted under TMI general pregnancy. What is normal?