fertility tracking

Predict Ovulation by Monitoring BBT and Cervical Mucus with Fertility Tracker

  • 4.8   (6 Votes)
Medically Reviewed by Dr. Deepika Tiwari - MBBS on 12 Sep 2018 - Written by Dr. Jyoti Mishra - MBBS - Grammatically Approved by Dr. Kavita Jaggi Agrawal - MBBS

Ovulation can be predicted by monitoring your body basal temperature and cervical mucus with the use of fertility tracker. You can predict your ovulation by charting your BBT by recording and charting BBT. Your cervical mucus should look like dry or sticky, creamy, wet at the time of ovulation.

If you have already conceived earlier then there are good chances that you are aware of the role of BBT and cervical mucus to determine ovulation but if you are trying to conceive for the first time then your understanding about changes in BBT and cervical mucus throughout the cycle is really important. The most important things you need are to track cervical fluid to know when you will be the most fertile along with basal body temperature for confirming ovulation. The main goal of charting the BBT is to know if and when you are ovulating for determining your fertile window or best days to conceive. BBT is the lowest temperature of the body and a special BBT thermometer is used for recording temperature to the tenth degree. Changes in cervical mucus also help in determining ovulation. In this blog, we will focus on these two important parameters namely BBT and cervical mucus one by one to track and predict ovulation.

What is BBT (Basal Body Temperature)?

Basal body temperature is the lowest body temperature in a 24-hour span. The woman trying to conceive needs to measure it daily for a few months to check if there is a similar pattern to their cycle. It will help her in estimating when she is ovulating. By taking BBT every day and charting the results will help a woman in noticing her menstrual cycle patterns.

BBT should be lower prior to ovulation (also known as Follicular Phase) and a bit higher (at least by 0.4 degrees Fahrenheit) post ovulation (Luteal Phase). You have ovulated if you notice and record this change between the phases. This temperature must remain elevated for the next 14 days.

You can also use fertility tracker for ascertaining the ovulation.

If you notice a regular increase in BBT every month, it indicates you are ovulating and helps you to know when to have intercourse in order to increase the chances of conception. You can also use BBT to determine whether or not the luteal phase is long enough for sustaining the pregnancy. For having an adequate luteal phase, the temperature must stay elevated for at least next 12 days post ovulation.

How to predict ovulation by charting your BBT?

BBT can be taken orally with a special BBT thermometer. Ideally, a large thermometer registers from 96 to 100 degrees Fahrenheit (is easy to read one to tenth-degree increments) is recommended. You can also track the temperature through digital thermometers.

Keep in mind: BBT temperature is also known as ‘resting’ or ‘base’ temperature. It means BBT should be measured before any physical activity, after at least 4 to 5 hours of sleep. Before using the thermometer carefully read the directions.

1. Recording BBT temperature

Every morning, the first thing you need to do is to take your BBT temperature as soon as you wake up. It is advised to stay in bed (as any activity can increase the resting temperature) before you measure the temperature. Also, avoid drinking or eating. You can track temperature either by inserting the thermometer in your mouth or in your rectum. Wait for 5 minutes. Record the temperature after reading it within 1/10 degree.

2. Charting the BBT temperature

You can start recording from day one of your menstrual cycle i.e. the first day of the period. Begin tracking the BBT temperature either by using a calendar, notebook or graph paper. Record your temperature every morning. You can also plot it on the graph. Your temperature can rise either suddenly, gradually or in steps. The pattern can fluctuate from cycle to cycle.

3. Predicting Ovulation or Normal Basal Body Temperature

For most of the females, 96 to 98 degrees Fahrenheit is the normal temperature before ovulation while 97 to 99 degrees is considered normal after the ovulation. You can make out the difference in one to tenth-degree increments and can ascertain when ovulation has occurred. Generally, an increase of at least 0.4 to 0.6 degrees is noticed during ovulation. But for some women, the temperature might increase suddenly or gradually.

You can also use menstrual tracker in case you do not remember your cycle dates.

There are numerous Factors That Affect Temperature. Make sure you are taking these factors into consideration while recording your BBT.

How to track Cervical Mucus for ovulation?

Checking cervical mucus throughout the cycle helps in monitoring the body’s cycle pattern thus, attaining pregnancy. As ovulation starts progressing, cervical fluid changes and gets more fertile or say ‘sperm friendly’. After ovulation, cervical mucus gets back to less fertile. You can predict ovulation if you are able to predict when cervical mucus is the most fertile. You can have unprotected intercourse in that duration for achieving pregnancy.

How does Cervical Mucus look like during ovulation?

The body of every female is different, so is the cervical mucus. There are different stages of the consistency of cervical fluid:

Texture of Cervical Mucus

Comments on Ovulation Prediction

Dry or sticky

This type of mucus starts coming out right after periods. It indicates that the woman is not yet ovulating.


This type of mucus indicates that the woman is near to her ovulation. It may happen in the next 4-5 days.


This type of mucus indicates that the woman is even closer to ovulation. It may happen in the next 3-4 days.

Raw Egg White Consistency

This type of mucus is the most fertile and it indicates that you will ovulate within 24 hours. It is the best time to conceive.

How to check cervical mucus?

You can check the cervical mucus by following the below mentioned steps:

  • Clean your hands: Firstly, wash and dry your hands.
  • Look for a comfortable position: Sit on a toilet seat or sit in a squat position or stand up.
  • Insert either your index or middle finger inside the vagina (Do not scratch yourself): You might not have to reach so far depending upon how much cervical fluid your body is producing. But getting cervix sample is said to be ideal. 
  • Look for mucus consistency: Once you remove the finger from the vagina and look for the mucus consistency you got. You can do it by observing the mucus and roll it between the two fingers (thumb and index finger). You can press your fingers together and then slowly move them apart. You are fertile if the mucus is very wet, stretches between fingers for an inch or more and has raw egg white. Ovulation is about to occur thus, the best time to have unprotected intercourse.
  • Record mucus findings: You can also mark mucus finding on your chart if you are using BBT chart. You can use abbreviations like for Sticky (S), Creamy (C), Wet (W), and Egg White Cervical Mucus (EW).

But what if charting the BBT doesn’t work?

If you think maintaining the chart is stressful or it is not working then there are other ways of estimating when you will ovulate. You can use Ela App to maintain your useful health records including BBT. It will also help you in maintaining your ovulation calendar.

You are required to enter the health details daily in the app. Health log provided by you helps the app to understand your body in a better way. Hence, your ovulation can be predicted more accurately. You will be asked to enter information like:

  • How is your vaginal discharge?
  • Did you have sex?
  • What was your position during male ejaculation?
  • Did you have an orgasm (Hint: Female Orgasm)?
  • Did you take ovulation test?
  • What is your cervical position?
  • What is your bleeding flow?
  • Do you have any discomfort?
  • What is your weight today?
  • Have you checked your BBT today?

Ela App is the best ovulation calculator, which helps you in determining your fertile phase. If you are having problems conceiving then call at +917899912611 to book an appointment with the best fertility doctor in your city.

Dr. Jyoti Mishra

Written by

Laparoscopic Surgeon, Gynecologist

Dr. Jyoti Mishra is a renowned gynecologist and obstetrician in Noida. She has a vast experience in the field of obstetrics and gynecology as well as infertility treatments. She completed her MBBS and MD from Gandhi Medical College, Bhopal in the year 1993 and 1996 respectively. Then, she went on to complete Diploma in Gynae Endoscopy from the University of Kiel, Germany in 2000. She has also pursued her education in Advanced Fertility from CIMAR, Kerala in 2011. She is a proud member of Federation of Obstetric and Gynecological Societies in India (FOGSI), AOGD, IFS, IMA, IDA, Indian Association of Gynecological Endoscopist (IAGE) as well as Indian Society for Assisted Reproduction (ISAR). Her areas of expertise include In-Vitro Fertilization (IVF), Intrauterine Insemination (IUI), Caesarean section as well as Normal vaginal delivery. She is presently practicing at Blossom Clinic in Noida. The contact information of Dr. Jyoti Mishra is accessible at elawoman.com


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  • Ela ovulation app - how does the app help individuals and couples?  track cervical fluid, Elawoman - 2018
  • Basal body temperature - how to measure bbt? should i chart bbt?  basal body temperature, Elawoman - 2017
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  • Best period tracker app - know the best way to track menstrual cycle  track and predict ovulation, Elawoman - 2018
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Shewta Rao

Informative article. Thanks for sharing!

Oct. 3, 2018, 7:51 p.m. 4.5


Raima Sengupta

I entered every question asked by ela. And it answered with causes and solution for the negative results. You can have a natural remedy as well as medication option too. Isn't that amazing?

Oct. 1, 2018, 6:44 a.m. 5.0


Rajani Mehta

I want to have more information regarding cervical mucus so, I could track them on my own. An app is also a suitable option if nothing works.

Sept. 28, 2018, 9:14 p.m. 4.5


Mannu Giri

It is impossible for me to put my finger inside my vagina so, I think BBT or using ela app is a suitable option for me.

Sept. 15, 2018, 10:11 p.m. 5.0


Vaibhavi Nigam

Tracking BBT and cervical mucus seem to be easy after reading this article. Thanks for the quick points to focus on.

Sept. 14, 2018, 11:08 a.m. 5.0


Thangavel Punati

Sept. 12, 2018, 12:45 p.m. 4.5

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