If it's any consolation, I am mommy to two little boys ages 3 and 6, and with both pregnancies I had spotting between weeks 9 and 12. The second one the bleeding was fairly heavy, and just last night I was laying in bed with him snuggling during a thunderstorm.
Know that you can ask your dr, and he/she can do some blood work to check the level of pregnancy hormone in your body. A super high number (they have a range they look for) will give you the information you need.
I had that this pregnancy turned out I had a uti