First time temping. Need help.

Erica

After no sucess for 3 years with my husband and several doctors, my new doctor wants me to start temping to track ovulation. My cycles got super irregular this year and now my doctor wants to make sure I am ovulating. I bought a BBT thermometer and now I guess I just need to know what to do and what to look for when I chart. Any help would be appreciated. Thanks ladies!