small brown discharge

Hi Friends,

 

I am 5week 5 days. This is my first pregnancy and very excited about it.

From last 3 day I am noticing small brown discharge (as part of mucus). It is ON and OFF .

If I swipe with tissue then only it is noticeable. I never observed strain around panty line.

 

My called my gynecologist and she told me to do ultrasound.