My second pregnancy, I knew the day after the act occurred, kwim I just had a feeling that was so, so strong... and I tested a whole week before AF was due and the line came up blindingly positive, there was absolutely no doubt. Unfortunately it wasn't a sticky one and left us at around 7 weeks gestation, but a blood test (and about six more HPTs lol) had confirmed it.

When I fell pg with DD2, I had a suspicion that we'd been successful but had lots of family drama going on around us (she was conceived three days before a sudden death in the family) so I ignored it until one morning I woke up with that 'funny' taste in my mouth, which proceeded to get stronger and when I threw up the next day (after rejecting my dinner the night before because it 'smelled off', which always happens when I'm pg) I did a HPT and yup, there it was

I had NO idea when I was pg with DD1, it was only after going through pregnancy that I knew which symptoms to look for and exactly what they felt like