Recommended citation format: Schnitkey, G.  Cost Cutting for 2016: Budgeting for $4 Corn and $9.25 Soybeans . farmdoc daily (5):141, Department of Agricultural and Consumer Economics, University of Illinois at Urbana-Champaign, August 4, 2015.
Generally: The temperature rise occurs after ovulation, usually about 2 weeks before the period starts. 4. About a week or so before my period starts, during my period and sometimes a few days after ,I run a temperature that ranges 99 - 100.
Why does your body temperature rise when you have a virus such as the flu? Pyrogens, chemicals that flow in the bloodstream, cause fevers. When your body temperature rises because of an infection, it's called a fever. Fevers are caused by chemicals called pyrogens flowing in the bloodstream. Pyrogens make their way to the hypothalamus in the brain, which is in charge of regulating body temperature. When pyrogens bind to certain receptors in the hypothalamus, body temperature rises.