Hi I Am 27 Years Old. My Actual Date For

Hi I am 27 years old. My actual date for periods was on 16th and I took primolut n to postpone my periods from 14th to 17th, one tablet a day. Its been almost 5 days and I still haven't gotten them yet. I have severe cramps sometimes and it feels like its almost started but nothing so far. Note: Also I have hypothyroidism and am on medication thyronorm 62.5mcg since 8 years. Kindly let me know if there is anything alarming and if I should visit hospital?