Cervical Mucus Tracking: Complete Guide to Fertility Signs

By Ovuloom Team | December 22, 2025 | 10 min read
Cervical mucus and fertility signs illustration

Your body produces cervical mucus (also called cervical fluid) throughout your menstrual cycle. By learning to observe and interpret these changes, you can identify your most fertile days—without any tests or devices.

Key Insight: Cervical mucus is one of the most reliable natural fertility signs. When you see "egg white" cervical mucus (EWCM), you're likely in your fertile window and ovulation is approaching.

Why Track Cervical Mucus?

Unlike BBT, which confirms ovulation after it happens, cervical mucus changes before ovulation—giving you advance warning of your fertile window. This makes it invaluable for timing intercourse.

The 4 Types of Cervical Mucus

Type Appearance Fertility Level Cycle Phase
Dry/None No visible mucus, dry feeling ❌ Not fertile Right after period
Sticky Thick, white, tacky, breaks easily ⚠️ Low fertility Early follicular
Creamy White/yellowish, lotion-like ⚠️ Possible fertility Approaching ovulation
Egg White (EWCM) Clear, stretchy, slippery, raw egg white texture Peak fertility! 1-2 days before ovulation

How to Check Cervical Mucus

  1. Check consistently - Same time each day, ideally before urinating
  2. Observe color and opacity - Is it clear, white, or yellowish?
  3. Test stretch - Touch between thumb and finger, then separate. Fertile mucus stretches 1-2 inches without breaking
  4. Note sensation - Fertile mucus feels slippery; dry phases feel, well, dry
  5. Log in your app - Record daily for pattern recognition
Pro Tip: The "stretch test" is key! Egg white cervical mucus (EWCM) can stretch 1-3 inches between your fingers without breaking. This is the most fertile type and means ovulation is imminent.

What Causes Cervical Mucus Changes?

Estrogen levels control your cervical mucus:

Common Questions

What if I never see EWCM?

Some women produce less obvious EWCM. Check internally (near the cervix) rather than just externally. Also ensure adequate hydration—dehydration reduces mucus production.

Can medications affect cervical mucus?

Yes! Antihistamines, decongestants, and some fertility medications (like Clomid) can dry up cervical mucus. Mucinex (guaifenesin) is sometimes used to increase mucus.

Is watery mucus the same as EWCM?

Watery mucus is also fertile! It typically appears just before EWCM and indicates rising estrogen. Both watery and EWCM are "fertile quality" mucus.

Combining with Other Methods

For maximum accuracy, combine cervical mucus tracking with:

Track Your Fertility Signs Easily

Log cervical mucus, BBT, and symptoms in one place. Ovuloom's AI learns your patterns.

Download for iOS

Also available on Android