As long as all your temps, humidity, housing etc. Is a in proper order i wouldnt stress about it too much . . . .

BP's can go of eating for months even a year is not uncommon, there are even 2 cases where BP's went off eating for 22 months straight which is close to 2 years, as long as your snake is not losing weight then you have nothing to worry about . . . I offer my yearlings(08's) an adult mouse every 5-7 days i weigh them before i offer them food even if they dont eat so next time i can tell if they have lost any weight, i offer my 07's and older an adult mouse every 7-10 days my adults get small rats, i prefer to offer my BP's smaller prey more often than larger prey spaced further away, its easier on their digestive systems

none of my adults have eaten since november but i still offer them food every 7-10 days and weigh them alot of BP's go off feeding during breeding season (november - march)