Brown spotting/red spotting n again brown spotting

I am currently 6weeks n 1 d pregnant, i was having sone very light brownish discharge since last couple of days, my Gp said thats quite normal as long as its not red and today i went to the loo n saw very light but red blood on the toilet paper. I freaked out, all of a sudden my pregnancy symptoms disappeared(sore breast/morning sickness) and started reading about it, i coulndt calm myself by all the information and talked to my gp. She told me that she cant say anything till the first ultrasound. I am so nervous as i dont want to loose my baby :((