What's the earliest you've tried a pregnancy test and got a BFP. I am ttc. My AF not due for another 10 days but yesterday I got a slight bleed which looked exactly the same as the implantation bleed I had when pregnant with DS1, sort of brown blood. Also suffering from heartburn the last few days which I've only ever had when pregnant, although I think it would be to early for any sypmtoms. Any thoughts?