Just for fun, as I know we are all bored of symptom spottting each month, and many of you have commented saying you wish there was one sure way to tell you were pregnant before getting that BFP. Trouble is, if the symptom was too obvious then people you don't want finding out would know too soon. i.e. employers If you could pick a symptom that would show when the egg was fertilised and then implanted, what would they be? And would you want to know that early?