I can now understand why some people don't realise they are pregnant subsequent times as without knowing I missed AF and have +ve tests I would know either
Me too! I had an inkling that I was pg so did a test, but had I not done that, I doubt I would have noticed until about 8-9 weeks when the MS kicked in.

When I was pg with DS I got the typical implantation bleed, some very severe cramping around the time AF was due, but it just never showed. So I tested and yup, pregnant. The cramping and stretching continued, I had a minor bleed at about 8 weeks and I didn't start to show at all until around 15-16 weeks.

This time, no implantation spotting, no cramping. And I have popped out VERY early to the point where I'm a tad paranoid about how many babies are in there LOL! Either that or my dates are completely wrong or I'm just showing earlier - which I think is fairly common in subsequent pregnancies.

The morning sickness & fatigue feels the same though. Ugh.