Spotting

I'm 12w1d and I just used the bathroom to notice dried reddish brown on my underwear. Not nearly enough to soak them but to lightly stain the crotch. I didn't even notice it this morning when I peed. But I noticed I had sticky white discharge that was pretty recent and no pink when I wiped. Im pretty sure I had some pink spotting with my first pregnancy and I was fine but I'm just nervous about it again. Have any of you ladies spotted yet and had a good doc checkup afterwards?