Yeah it sounds like your period.
As for temperature like hippychick said anything can raise it. I recently was a little nervous cuz my temp is usually pretty low so when it hit 98.8 I got scared so I searched on the net and normal temp is 97-99 and is lower in the morning and up to 99. something in the afternoon so really even time of day affects it. Time of month definitely does too blah!
\"As soon as you trust yourself,you will know how to live.\"
Johann Wolfgang von Goethe
\"Do not anticipate trouble, or worry about what may never happen. Keep in the sunlight.\"
Benjamin Franklin