Last month I took plan B and my period came 4 days later. This month, I am on day 11 and my temperature did a huge jump from yesterday (96.4 to 97.8). I had an extremely restless night last night-- got up to try to find my thermometer an hour before the time I temp, and woke up 3 or 4 times from 3 am to 7:45 am-- so maybe this is the reason for the temperature drop. If not, I may have ovulated very very early! Has anyone else had experience with temping and taking plan B? How did it influence your ovulation the following cycle?