Can you tell me exact cycle days you noticed fertile SxS and which cycle days you got +OPK's. I guess I'm not clear if you predicted you would have a 28 day cy and it was cut short by AF 1/2 way through after you got fertile SxS.... Or you had a 28 day cycle, got fertile SxS at the and and got AF then too.
Anyway...I would take a pg test to be sure and if it comes out negative you may want to think about taking your temps this cycle. Since you already know how to track other fertility SxS charting should be a breeze for you
Have you signed up at
www.fertilityfriend.com yet? If not look into it. It's free and not only is it a great way to help you chart but a great way to share your chart on line.