In 3rd pregnancy have discovered www.eastlondonpilates.co.uk which is, IMO, the best preggy stretch & strengthen option on the Isle of Dogs. Have tried the local yoga options and found them to either a bit 'chat and breathe' which is all v well but a darn expensive way to do it. Or felt like I was trapped in a direct marketing project being sold fecking raspberry leaf tea. Anyway, dead pleased with this option, run by Kelly who's lovely and sensible. Am in no way linked to the org - aside attending and I found it online - thought others might fancy it.