Yesterday I noticed very light brown spotting on my panties, but not in my urine or when I wipe. Today when I wiped I noticed light brown spotting on the tp but not in my urine. Yesterday I had my 2nd u/s n got to see heartbeat flicker n 4th beta was a lil over 14,000. Should I be concerned? It's too late to call my RE n am out of town till late Friday.