The thing you have could be what’s termed implantation bleeding, which can occur when a fertilized egg attaches itself to your uterus lining. It is common during early pregnancy and might result in light brown spotting. This shows that your body is getting ready for pregnancy, so try not to worry too much about it. Monitor for any other signs such as cramps or heavy flow. You might want to talk with a gynecologist if there are any concerns on your part.