Peta Murgatroyd is giving an update on life at home with her and Maksim Chmerkovskiy's newborn son, Rio.On Monday, the alum took to her Instagram Story to give her followers some insight on how things have been at home since the arrival of their second child. «I'm finally back, well back on and off,» Peta told the camera as she nursed Rio. «I haven't been giving daily updates because I'm just like 'ah'...like trying to figure out everything and everyone and life is good. It's amazing.