Sir my gf had ipill on 26 october. Her periods ended on 25th of october. She has a regular 28 day cycle and ws expecting next oeiods on 17th November but its 25th of November today and still periods haven't come. She did urine tests too and all were negative. She perform her last urine test on 24th November and that was also negative. Please tell uoto what date we have to wait for her periods to arrive. M a bit worried. Please oay attention to my problem and reply. thanks.