Congratulations and welcome to all the new BFP-ers!
Toby - good luck at the midwife today.
Pea - glad you're feeling a bit more chipper. I tend to find that feelings like that come and go but nearly everyone feels the same at sometime or another. That helps me not feel like I'm going mad!
I'm currently alternating between feeling terribly guilty that DS will be a big brother at just 13 months but then thinking it might be nice for him and the new DC to be close in age. It's quite exhausting, emotionally
. And I do feel awful as everytime MIL or my mum or my dear sis hear about someone having two children close together, they say how awful it must be and they're not judgypants pants types. My sis was telling me about a friend she met last week who has 14 months between her DC. Apparently she has a new fringe as her hair has fallen out with stress
. Great! DH says we'll just have to be the exception to the rule and, worst case scenario, he'll buy me a wig for Christmas. 
We're quite lucky in that we moved a few years ago and got married in 2011 before DS in 2012. Thankfully, we've got plenty of room as I think I would be tearing my hair out with DS, unexpected BFP and having to move! Oh and DH buying a practice - we really like to make things as crazy as possible!
Re temperature - I'm just fucking boiling all the time! Although I did have a few cold episodes before my BFP
Cramps - I've not had anything too badly. I do have an intermittent sore back though. I found with my 2 periods post DS that I didn't really get bad cramps anymore and I'm wondering if, as things are quite stretched ahem!, that's why I'm not really feeling anything too badly as I did with DS.
habitual - that is so exciting re being further on than you thought!
humpty - I hope I've not infected you with my clear blue compulsion
. Now I've got the 2-3, I'm a lot calmer in that I'm only doing 2 Internet cheapies a day! I am not doing another clearblue til next week and then only 1 - just to check for the 3. It's totally ridiculous as they are not a proper diagnostic test but its like an awful compulsion!
clapham - sure you'll be fine with the cleaning products. I don't worry too much re them, just make sure I keep the windows or doors open.
sultana - know what you mean re the midwife. I'm booked in in 2 weeks time and mine are a real mixed bag ( putting it politely). I hardly saw the same one twice to be honest. But there are 2 lovely ones so hope I'll see more of them.
We're also going on a nct refresher course -just to meet more people with babies the same ages as my current nct chums will all be back to work when DC2 is born. We met lovely people on our course last year so would strongly recommend it. We booked very late (around August - DS due in November) and nearly didn't get a place so just wanted to pass on as I couldn't believe how quickly they got booked up.
Sorry if I've missed anyone out - will catch up later