First time pregnancy

Hi there, I found out I'm pregnant beginning of January. Finally went to the doctor for my first initial visit for a vaginal ultrasound. Well, there is fluid and the sac is normal but there is no yolk "fetal pole" in the sac. They did several blood test, my hcg level was a little over 6000. Doctor wanted me to go back two days after and got my test result back with it being in the 7000. They want another hcg level test on monday. Before I went to my appointment on a Tuesday. That weekend I was discharging light brown and light pinkish. It went away by Tuesday before my appointment. Now I am currently experiencing the discharge again. It's not heavy. Just here and there. Anyone ever had this situation before? Very nervous on what my monday result hcg level will be.