I'm 11 weeks & 4 days today and had some yellowish spotting. When I was 4-5 weeks, I did have more of a brownish color which was probably like implantation bleeding. Every now and then, I do have a tiny bit of yellow spotting maybe every other day and because of that I wear a panty liner daily. Before I was pregnant, I noticed these past 2-3 years I produce more discharge than I used to and wore a liner daily anyway... Sucks :(