I know when I fell pg with ds, I was at my Christmas party and for some reason thought I may have been pg. I went to the toilet and when I wiped there was blood. I was so annoyed with myself, even though there was only enough to suggest af was starting (spotting, really). I got wasted after that :O ... 3 days later (af didn't actually didn't turn up), I had the runs. Dh joked maybe I was pg. Went to the dr (for something unrelated), a pg test confirmed I was pg.

So, you never know!!

best of luck xx