Aiya...I'm similar to your days too...my day 1 is at 16/12 r....today is day 26...my usual cycle is 25-28 days.....these two days my temperature is 36.7-36.8...I'm so scared to check! No guts to do so r.....
Did you measure temperature too?
However, my breast is painful and swollen.....syptoms of period...but as i've heard from other jm..if bingo...same syptoms ga!