10 wks with brown discharge?

Kristin • Momma & Wife
Ok I'm a little over 10 weeks now with my first pregnancy. We just had a U/S Tuesday and the baby was doing great....very active and a good heartbeat. I just went to go pee and had brown discharge in my underwear and when I wiped (sorry for the tmi). I instantly think the worst and had my dr paged and he called back and told me he wouldn't be concerned unless it was an actual flow and I began to have painful cramping. My husband and I did have intercourse last night so he said that could have something to do with it. Anyone else experienced this?