Hello Doctor, My Name Is Anita Based In Delhi.my LMP

Hello Doctor, my name is Anita based in delhi.my LMP date is 30 Aug 2015. I am little worried because my ultrasound says mild basal stippling grade II but have no calcification. Gestational age was 30 weeks 2 days during last ultrasound. My Gynae says fetus seems smaller n the age of baby seems 26 to 28 weeks only. Single loop of cord is also seen around the neck of baby. They hv asked me to get admitted in the hospital, bedrest and proper medicine and food. I am eating good n do 30 min walk max a day, do all household works like washing utensils, clothes, cleaning, dusting and mopping, cooking twice in a day. Am I working too much? I eat chappatti n vegetables in breakfast at 10 am with a glass of milk added with protein X powder half spoon. Lunch at 2 pm consist of 3 chappatti veggies, salad, fruits in the evening at 5 and then dinner at night around 9 pm.i had eggs chicken fish chocolates ice cream, salads everything and my weight was 63 kg before pregnancy wch has reached to 77 kg nw. Could you please read, understand my situation and guide me further to have normal delivery.my age is 34 years and its a first baby.