preg ladies who wfh!

Hi! Just a question... how do u all work frm home? I have tons of work to do... so usually i sit fr long hours (with 3 min stretches in btwn)... isit advisable to sit fr long hrs with low lying placenta or should i just work on my bed while half lying down? Since this CB is extending.... my boss will be giving me more work to do.... so just wondering what do you ladies think. Tia!