Light brown discharge at 11 weeks

Hi mommies. Anyone here who've experienced light brown discharge at 11 weeks? Normal pa po ba ito? OB advised me to take Heragest for a week then repeat ultrasound. Sobrang ingat ko po, di na ako halos gumagawa dito sa bahay. Work from home din naman po ako kaya most of the time, nakaupo din sa harap ng computer #firsttimemom