Light brown spotting?

Tara
Last December I had a miscarriage at 6 weeks and ended up having the d&c on dec 12. It was heart breaking. Last month I found out I was pregnant again and so far I've made it further into the pregnancy than I did last time as i am est 9weeks along. Today I noticed light brown discharge on the tp when I wiped after urinating. Not alot at all and nothing in my underwear just when I wipe. No cramping nothing accompanying it either. I called my docs nurse and ahe said it is very common in the 9th week and unless its red or I have cramping or fever to not be alarmed... help?!?!?! Has anyone else had this happen??? I dont have my first ultrasound until next tuesday and I can't help but think the worst :(