Hello! Any more first time some days prior to the next menses...

[Julia]

Hello!
Any more first time some days prior to the next menses (sometimes for a week) rises temperature 37.2 37.3 at normal analyses. What is it can mean?
Thanks,

[VV]

Takova reakciya vashego organizma na progesteron. Kstati, esli vam interesno, eto proisxodit posle ovulyacii.