Ovulation Predictor Kits vs. Basal Body Temperature

When you are trying to get pregnant, of course you must have intercourse – at the right time that is. That right time is called ovulation; there are ways to determine whether you are ovulating. You can either opt to use an Ovulation Predictor Kit or resort to measuring your Basal Body Temperature. But which one is better? Here are their pros and cons.

Ovulation Predictor Kit – Tests your urine for hormones that signal that ovulation is imminent




Can be expensive (kits cost between $20 and $50 per cycle)

More accurate than charting basal body temperature and cervical mucus

Directions must be followed to the letter for accurate results.

Can predict ovulation as close as six hours before it happens, making it easier to time intercourse.

May not work well for women with irregular cycles, who may require more than the five to nine predictor sticks for daily testing available in ovulation predictor kits.

Only needs to be used mid-cycle, instead of every day.

Tests for the luteinizing hormone surge that takes place right before ovulation, but doesn’t confirm that you’ve ovulated.

Works better for women whose temperatures don’t rise after ovulating

Fertility drugs can invalidate results.


Does not indicate the presence of the kind of cervical mucus (egg-white in texture) that must be present for successful conception.

BBT and Cervical Mucus Chart – Keeps track of your temperature when you first wake up in the morning, and the texture of your cervical mucus.



Inexpensive. After the initial investment of between $5 and $10 for a basal body thermometer, you’ll have no additional out-of-pocket costs.

Inconvenient. You must check your temperature first thing in the morning and your cervical mucus every day.

In most women, accurate when done correctly and consistently.

Can be messy.

Teaches you how to read your body’s signals.

An unusual event such as illness, moving, or a job change can disrupt your cycle, skewing your pattern for that month.

Teaches you how to interpret the texture of cervical mucus, a fairly precise sign of fertility.

Doesn’t pinpoint exactly when you’re about to ovulate. May take two or three months for a pattern to emerge.

May work better for women with irregular cycles.


Can also be used later to prevent pregnancy (by avoiding sex on your most fertile days).


Source: babycenter.com/0_ovulation-predictor-kits-vs-basal-body-temperature-cervical_7059.bc