See, that's the problem isn't it - conflicting advice at every turn, how are we supposed to know what is right?
Is especially annoying when on the one hand it has been proven that if pregnant women exercise it is good for both her and the baby and on the other you have people like oopsacocanut's midwife telling you to stop.
Did you know that, apparently, the "no higher than 140bpm" which you often read in pregnancy literature was completely made up by a man (typically) as being what he thought sounded about right!! Fantastic that isn't it - something that is being touted as gospel has no proper basis for it! Outrageous.
The thing I reckon has to be true is that the baby gets first 'go' on all of your resources, so if you over exert yourself, the baby isn't going to be deprived of oxygen, you will pass out! I guess the problem is that they just don't know, so err on the side of caution (similar to the current "no alcohol" ruling?) and tell you to stop everything.
Thanks for all that info pistachio - it might be a bit late for me to start Pump now, but if I go through all this again it is something I would definately do - with those work arounds you mention.
I saw a list published somewhere that someone had taken out of a book, it had a few points on it regarding pregnancy and exercise, and one of them was that if you stopped exercising half way through you were likely to have a big baby!! Will try and find the list - but gives you something to think about / motivate you this afternoon