Stormy - I second Heidi - I'd test before Saturday you would definately be enough days post O even if the temps are a bit screwy. I've seen Christina & Mere have really long cycles (both of whom are pregnant now) And they had to take a medication to bring AF down - actually I think Christina took it when she was pregnant cause she didn't know she was pregnant. So test with a digital and if it's negative call your Dr ASAP to get the next cycle going.
