Well im not a doctor, but from reading other posts on here and my own previous experiences im sure everything is fine. You can always double check with a phone call to your doctor. Good luck with your pregnancy!
Im 12 1/2 weeks.. it didnt last long at all and i didnt feel anything.
Im assuming you aren't too far along, and early in pregnancy its normal to spot as long as there isn't a lot of blood and the spotting isn't accompanied by cramping.