birth-control-basal-body-temperature-bbt

BBT (Basal Body Temperature)

A more precise (though tedious) method of determining ovulation is charting your Basal Body Temperature (BBT).

When the family strongly desires a child after years of marriage, they take efforts to find the BEST time for conception. BBT is done at home and fairly reliable. Good alternative to detection of maturation done by Gynecologist or Fertility specialist using Ultrasonography.

If you want to avoid pregnancy or if you’re trying to get pregnant, knowing the time you are likely to ovulate can help you time intercourse accordingly. Many couples have had success using ovulation predictor kits, which can detect ovulation roughly 36 hours beforehand.

Rise in body temperature is conducive to implantation of zygote. It can take 24 to 48 hours for progesterone levels to build up enough to raise your body temperature. However, since the egg or ovum is only around for 24 hours, at that point it’s too late for fertilization. Charting each day’s basal body temperature will help pinpoint your likely ovulatory date and determine future patterns for predicting ovulation.

Then you can plan to have intercourse 2 or 3 days preceding ovulation. That way, the sperm can already lie in the fallopian tubes, in readiness for when an egg is released, increasing your chances of conception immensely.

HOW TO MEASURE (BBT) BASAL BODY TEMPERATURE

A special highly sensitive thermometer, the BBT thermometer, is used to measure Basal Body Temperature. Such a thermometer is graduated in one-tenth of a degree increments, and is generally inexpensive ($6-$12). Your Basal Body Temperature can be taken either orally or vaginally, with orally being the more accurate method. Whichever you choose, try to keep it consistent throughout the cycle. Also try to place the BBT thermometer the same location in your mouth or the same depth vaginally every day.

Your BBT temperature refers to the temperature of your body at rest – your temperature when you first wake up in the morning. It is recommended that you take your BBT first thing upon awakening, after at least three to four hours of sleep, before doing anything else (or your temperature will fluctuate), as well as avoid eating or drinking.

Variation in Temperature

• Your temperature can rise up to one-tenth of a degree for every 30 minutes taken later than normal and fall one-tenth of a degree for every 30 minutes taken earlier than normal. If your temperature wasn’t taken at the normal time, adjust it using this rule.

• Your temperature can also be affected if you have a fever,

• if you didn’t get a good night’s sleep,
• if you had an alcoholic drink the night before,
• if you experienced a jet lag
• and by changes in sleeping habits.

Source:
http://www.ovulation-calendar.net/fertility-indicators/basal-body-temperature.php
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