The count from the last day of that period or does that period not count and I'm counting from 5 days after I was originally supposed to ovulate? Or am I counting from a different date all together? I took plan b after having unprotected sex the first day of being fertile (which was 4 days out from supposed ovulation, as I'm using a calendar that isn't completely accurate). That was dec 27. I just had unprotected sex again yesterday (January 9 and 10). What's my body going through? How do I start tracking ovulation again?