What would you do?

While I’m waiting on my OBs office to open, I’d like to ask your opinion. Tomorrow morning I have an early scan at around 6 weeks because of a history of miscarriages. Last night when I wiped there was the slightest bit of light brownish tinged mucus discharge. So little that had I not REALLY been examining it I don’t know that I would have noticed. It has since stopped but I’ve been crampy mostly in my back but I also am dealing with unrelated back issues. I know that I will be given the option or coming in today or waiting until tomorrow, so what would you guys choose? Could a sonogram make a noticeable change in one day? I ask because my ob wants to see me before she goes out of town next week and while I’m still early there’s always a hope we could see something. So if I go today instead of tomorrow, would that make a difference?