Community medical question

Meri age __21_ years hai. Mujhe pehle PCOS diagnose hua tha (ultrasound mein polycystic ovaries likha tha). Pichli cycle mein 2 haftay spotting hoti rahi aur proper period nahi aya. Ab is cycle mein bhi 2 din se brown spotting ho rahi hai, aik dafa dark red blood aya aur mild lower abdominal pain hai, lekin proper flow start nahi hua. Mujhe mild acne aur weight gain bhi ho raha hai. Kya yeh PCOS ki wajah se ho sakta hai? Kya mujhe Duphaston (Dydrogesterone 10 mg) ki zaroorat hai? Agar haan, to kis dose aur kitne din ke liye?