Pregnancy question 8 weeks.?

HI. i had a question or two, wondering if this has happened to anybody else? i am currently at 8 weeks, or around there. i have had brown spotting after urinating when i wipe. no cramps really but it been bothering me. is this normal? i have had two miscarriages 2 years ago. and i am so nervous this time once again, because of what i went through two years ago. my first dr appt is this tuesday, and the suspense is killing me. morning sickness comes and goes, and so do the rest of the symptoms. sometimes i feel pregnant and like today i saw the brown again after urinating, but no symptoms at all. i feel totally normal. Does this sound like i should be worried? or am i over reacting? thanks for your help!