Im confused. Came off pill 25th October and had period 17th November which ended 25th. Dtd 5x in the next few days and agen when my app told me i had greatest fertility. On friday last week cycle day 16 i started getting period like cramps which got more persistant through to yesterday. This morning though AF still isnt here and the cramps have stopped. Could the cramps have been ovulation instead? 
i have been literally convinced it was AF even though im not due until 15th December - figured the pill had messed me up. Any suggestions??