When does light brown discharge begin in pregnancy?

How long after becoming pregnant does the light brown discharge begin?

UMM not that long I belive a month

I am a mother of 3 grown children and I have never heard of such a thing. The only time that I had such a discharge was when I was starting to miscarrage.

sometimes when the egg implants (about the time you'd get your period) there can be a slight bloody or brown discharge, but its not standard. Most women get nothing like that. Some get random spotting all through pregnancy, some never bleed or spot anything...