Working FT while pregnant

Juanita
I work Ft as a housekeeper at a retirement community. I am almost 11 weeks pregnant. Most days I clean 3 houses a day...than I go home, make dinner and I am beat!!! Should I add other exercise on top of this or just exercise on days off? Does anyone else work a strenuous ft job? What do you do to relax and feel less tired all the time???