pap, preg, and spotting

mikaela
hi ladies! today i (think) i am 6 weeks preg (haven't had an official ultra yet) yesterday i went to the doc and they did a pelvic and pap. i go for my ultrasound tomorrow, but i just went to pee and i have some superrrrrr light pink spotting/discharge. just wondering if everything is okay. i called the doctors, they said it's pretty normal to spot but to just keep an eye out for bright red blood. 
i'm just wondering if any of you have had this before? i'm just nervous especially since i haven't had an ultra yet to see my little babe!!! 
thanks in advance!