Holly I'm struggling to do anything too (apart from the odd cycle) I was doing pilates every week till I got pregnant then felt too sick/tired to go, and by the time I feel better I won't be able to do half the stuff (instructor reluctantly said she could bring special pregnancy stuff so I could continue but its a big class and she has to lug enough stuff as it is!) I have a pilates in pregnancy book so may just try to do it at home...
I'm not sure about the skinny maternity jeans- I love skinny jeans when not pregnant but I just think when I've got a big bump I'm just going to look like I might topple over with a big bump sticking out! I may try some on when I've got a bump, or else just stick to bootleg again.
Queen sorry to hear about your dilemma with your dog- I'm not really a dog person (I like dogs just never had one) but I can't see why you can't keep him if he gets loads of exercise (and it sounds like he does!) and is happy. It just depends if you think you can handle a lively dog who still needs some training and a baby- could be a bit hectic! I find it hard enough to look after a cat sometimes ;-) (he's very demanding in the cuddles department and I just don't have the time bless him)
Regarding co-sleeping- I have never done it with either of mine - just had the moses basket next to the bed in the beginning. Looking at the snuggle nest, looks pretty secure- i.e. baby can't roll out so I don't see why it wouldn't be safe. I also do love those cots where one side comes down and it can be clipped to the side of the bed- that's a great safe way to co-sleep I think.