SaraJane, I pretty much knew straight away. On the day that our bub was conceived I said to my husband, do you want to make a baby today, and low and behold we did. I couldn't shake the feeling that I was pregnant even though my first 4 pregnancy tests were negative. Then, the day after my period would have been due I had a dream that I was in labour and my waters had broken - it was so vivid that I actually woke up thinking I'd wet the bed! The dream prompted me to do another test and it was positive!