6 mths pregnant, is it dangerous for me to move some furniture around?

i guess my nesting phase is setting in a little early because i am sooo ready to get all of this christmas stuff down and otu of my house,and to get my livingroom moved back to normal..but i am here at home today alone with my 21 mth old son,and i am right at 6 mths pregnant myself..do you think it's safe to move my livingroom around? i really really want to get it done, i'm a very proud person and i hate having to wait to do stuff just because i'm prengnant,i also hate for everyone to keep treating me like i am helpless or something,because i'm not.but also,,i don't want to hurt myself or my unborn son..what all do you think is safe for me to get done without help? and what all should i wait to have help with? thanks...