I never had sore boobs a lot, but that definitely came and went all the time (still now). If you have a look in 1st tri (have you ventured into there yet?), it's full of threads with people saying 'my symptoms have suddenly vanished- what's going on?'. Again, totally normal. Because I didn't have any morning sickness etc, I had tons of days when I didn't even 'feel' pregnant and honestly, I still have those days now. But once you have your booking appointment, you can tell all of your concerns to your midwife who I bet, will have heard them loads of times and can reassure you about everything.