How much weight can i lose in 2 weeks? wiTHOUT...?

i have to lose some lbs before school. which is in 2 weeks. i guess i can actually lose about 4 lbs a week. but the thing is i developed an eating disorder. i was obsessed with eating only healthy foods. that means eaiting even no cereal. eating nothing that has cholesterol basically just eating veggies, fruits, and sometimes milk. sounds like a joke? no its not. theres the dieting people do and cut out bad food. but with orthorexia. i dont eat anything with sugar. i lost a lot of weight from that. and i didnt gain it back. but this week has been hectic. and ive not had time to exercise. so all i did was start eating like a normal person. well not really. id have a half cup of cereal. and maybe a fruit. and then some spaghetti for dinner. or a salad or something. and well ive bn week. and i dont wanna go back to orthorexia.. so how much weight can i lose in 2 weeks. i was plannign on running in the morning and night starting from sunday. and well been orthorexic. but am smart and i know thats the wrong way..