Butterpuff I'm very sorry to hear about your baby's heart defect. It must have been a stressful time getting the news and having further scans and consultations. I hope you've had plenty of support from each other and from family/friends? Anyway the prognosis does sound good so that's really positive 
MrsMushrooms Sorry you're having trouble finding a bra to fit
I don't have any suggestions I'm afraid but you have my sympathy and good luck!
charlybs Yes as the exhaustion has lifted I've started to feel the need to get back into exercise! I've been for a swim twice now and it was lovely. Bumped into my Zumba instructor who suggested Aqua Zumba so I might try that too. I'll need a new swimsuit soon - which one did you get? Is it a maternity one? I need one to accommodate by big boobs as well as my bump!
On the general topic of bras, the websites are good but you really can't beat going into Bravissimo, getting advice from a trained fitter, and trying on different brands and styles. I've had bras that should fit me in theory that started really hurting and left horrible red marks after a few hours of wear. I think it's especially important to get a comfy fit in pregnancy as well.