Can preggy still do housework? Eg. Vacuum and Mopping?

31 weeks now and STILL doing household chores, which include sweeping, mopping, wash toilets, wipe windows, hang laundry, etc... As long as not putting myself in any danger, I just do. But I do notice that the pace is different now. last time, I can do it faster. Now, stomach like this, stamina also go down. I tire easily.