I'm 32 weeks pregnant so can't offer any advice for when baby is here, but hopefully some of this will be useful for your pregnancy:
I completely agree with the recommendation for the Positive Birth Book by Milli Hill. I was quite anxious about labour before I read this but I'm really excited for it now. Obviously I don't know what will happen on the day but at least I get to spend the run up looking forward to it and I feel like I'm much more equipped to deal with all the eventualities now.
Get into good postural habits now (stop crossing your legs if you do, be conscious of legs lower than hips etc) as it's important for baby's position later on. Helps to avoid back-to-back labour which may be longer and more painful. Birth ball would be a good idea later on.
This one is for second trimester onwards but I've found my maternity pillow an absolute lifesaver. I've struggled with back pain and it's been so helpful. Great for keeping me on my side when I sleep, but I also wrap it round me when I'm sitting all day at work for extra support. I think you can even use it for nursing afterwards and then sitting baby up even further down the line. I got the JoJo Maman Bebe microbean pillow but there's probably loads that do the same thing. I should be on commission I've recommended it that much!
One thing you can really look forward to is feeling your baby move, it's absolutely magical. It's such a tiny strange feeling at first and you'll probably not be sure whether "this is it", but all too soon it's change into seeing their little bum sticking out your stomach as they stretch their legs and feet lodging under your ribs. Probably the most special part of pregnancy for me.
You'll probably go through moments where you think "what the f have we done" and it'll be like your heart is in your mouth. Totally normal, doesn't mean you've made a mistake and nothing to feel guilty about. This is a huge huge thing! Life changing. Normal to have brief spells of panic.
Something I see a lot of ladies worried about on here is loss of symptoms around the 9 week mark. This is around the time when the placenta takes over so if you're lucky you'll start feeling much more like your old self. However it can be quite scary and it's easy to worry that something is amiss. Pregnancy is the only time in your life you'll worry about not feeling ill enough!
Linked to the above point, when I was around 9 weeks I had quite a large bleed which coincided with my symptoms disappeared and I was convinced I'd miscarried - what I didn't know was that bleeding in the first trimester is very common and most of the time it's benign. If it happens to you, obviously get it checked out, just wanted to mention it as I thought it definitely meant I was miscarrying until it happened.
NCT classes I've found really useful so far, the group is very mixed and probably not the kind of people I'd normally socialise with but I do think I'll stay in touch with them and the course information is very helpful.