If your temperature does not rise at all, then it can mean that you are not ovulating but all women can be different. Your temperature will zig zag a bit but during ovulation you will see about a 0.2 rise in temperature from say the previous six days. You may be expecting a bigger rise but it is actually a very small amount of a rise. You need to be taking your temperature first thing every morning as this is the best time. I suggest that you follow the tips I am going to include below which may give a little more insight to predicting ovulation time by basal temperature method that I hope will be of help to you. If you do not see even a 0.2 rise at all after taking your temperature everyday then I suggest talking to your physician about your concerns about not ovulating in case there is another underlying reason as to why you may not be. I am also going to include a link below that tells of other various methods to predict the best time of ovulation such as cervical fluid evaluating. I hope this will be helpful to you and I wish you the best of luck. If you have further questions please let me know.
Taking Your Basal Temperature
Take your temperature in the morning before you get out of bed. Try not to move too much, as activity can raise your body temperature slightly. Use a glass basal thermometer or a digital thermometer so that you can get accuracy to the tenth of a degree. Keep the thermometer in your mouth for 5 minutes. If your temperature is between two marks, record the lower number.
Try to take your temperature at the same time every day, if possible. If using a mercury thermometer, shake it down when you are done so that you do not have to shake it in the morning and thus risk raising your temperature from the movement.
After you ovulate, your body temperature will rise and stay at an elevated level for the rest of your ovulation cycle. At the end of your cycle, it falls again. Create a chart and write down your temperature everyday. From one day to the next, your temperature will zigzag a little. These small temperature changes will seem random at first -- ignore them.
Also, ignore the occasional "fluke" temperature that is obviously way out of alignment with the others -- this can happen for any number of reasons (like stress) and is not important to finding the pattern. If you look at a complete cycle, you will probably notice a point at which the temperatures become higher than they were in the first part of your cycle. More specifically, the rise is when your temperature increases 0.2 degrees above the previous six days.
The limitation with monitoring your temperature is that by the time you are certain that you have ovulated, it is usually too late to become pregnant! You can still try to get pregnant the morning your temperature rises, but chances are slimmer. The egg is probably gone by that point.
However, temperature is still a very useful indicator of fertility. For one thing, after several cycles you may be able to see a predictable pattern and get a sense for your most fertile days. More reliably, the rise lets you know when trying to get pregnant becomes less likely. And lastly, temperature is an excellent indicator of whether you are pregnant. If your temperature does not go down at the end of the cycle, you probably succeeded and are pregnant!
http://www.nlm.nih.gov/medlineplus/ency/article/007015.htm
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*Cheryl K* Please click the "ACCEPT" button
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