Spotting at 6.5 wks!! Advice/Opinions

I'll be 7 wks on Tuesday and I went to the bathroom and wiped and saw brownish- reddish discharge with a little bit of tissue in it. Not enough to soak a tampon but enough for a panty liner. Called the Dr who said it was normal as long as I wasn't cramping on one side. I'm not cramping at all. This is my first pregnancy but my Mom and sister miscarried with their first. Has anyone ever had that? I don't know if I should be mentally positive or mentally prepared for the worst. Anybody experience something similar?