brown spotting 9 weeks- help!

bjlucas1

I started spotting (brown creamy discharge) last week at 8 weeks and went for an emergency ultrasound. I could see the baby's heartbeat and my hormone levels were perfect so the doctor sent me home and said everything was ok. Since then (almost 2 weeks) I have had more light pink to brown discharge on and off everyday (just about a smearing on the toilet paper each time). The doc told me to call the office only if the amount was enough to go through a pad, which it hasn't, or if I had really bad cramps. I still feel pregnant (fatigue, nausea, sore breasts, etc) but I am soooooo worried. Has anyone else had similar experiences? Thanks!