just looking for a bit of advice. I'm currently 13 dpo (cd32) according to temps (using fertility friend) and on 11dpo started to have slightly brown stained CM only on the toilet paper (sorry if tmi!!!) then on 12dpo also happened a few times. today 13dpo still no AF and the brown CM gone. Thinking (well probably foolishly hoping :) ) that it may have been implantation bleeding. Never had anything like this before-normally AF for me starts in the morning bright red and clear bleeding so never experienced this or spotting. Only other symptoms have been increased CM and quite pronounced nausea from 12dpo. Was just wondering when is the soonest after implantation bleeding that you could do a hpt and expect an accurate result and which would be a good test to use? I stupidly used a sainsburys own brand yesterday and bfn.