i would suggest you make a list of stuff the night before that you need her to do and show her the list you have to do...on her list get her to cook (its not that heavy work) ask her to dust(make sure its like a cloth and not a heavy spray)....wash dishes ...and other light things...when she sees all the work that needs to be done she wont even bother asking...then you can do the vaccuming and heavy lifting....when my dad was lifting stuff i always had door holder job...and he barked alot to make it feel real important lol....but she can do some stuff depending on how far a long she is...granted she does need to take it easy...scheduale breaks.....say that you need to relax for a few minutes...to grab a snack...and then another one for lunch and so on...make it like 15 minutes....that way she is keeping active and making sure she has vital nutirionates going into her body....and perhaps at the next doctors appointment ask the doctor what other kind of conditions you and she should look for....what she can and cannot do...everyone is different...one girl might need bedrest the whole time...while another girl runs and does pilates until she gives birth....she is not being angry because she wants to pick a fight....she just wants to feel useful...she probably see's it as ...this is my house too i want to earn it....i want to help...and when you tell her not to she probably feels left out....she feels unneeded...and its not nice to feel unneeded....remember her horomones are going to be everywhere also....so keep that in mind. And at the end of a long day of working offer her a backrub and/or a foot rub....draw her a nice hot relaxing bath...that way she doesnt feel your pushing her aside but embracing that she can do things and then at the end of the day relax and destress and take some one on one time with her body and baby. Good luck....