I snore and tend to sleep with my mouth open. Can I still chart?
The key to charting is consistancy. Most people that sleep with their mouths open are still able to see a pattern in their BBT change that allows them to successfully chart their fertility. If you are unable to see an ovulatory pattern on your chart, but you have reason to believe you are ovulating (based on fertility awareness or OPKs), you may want to try taking your temperature vaginally. Yeah, if your husband doesn't already think you are crazy - wait until he sees where you stick a thermometer every morning. The same rules apply as regular temping, but you will find your temperatures read a bit higher. Vaginal tempers often find their temps are more consistent than oral temping. Just one word of advice: You may want to get a special BBT thermometer and write a big "V" on it.
