How does cervical mucus change across the cycle?

Bottom lineCervical mucus changes predictably across the cycle, driven by estrogen: dry after your period, then sticky, then creamy, then clear, slippery, and stretchy like raw egg white at peak fertility around ovulation, then thicker or dry afterward. The egg-white stage signals ovulation is near (your most fertile day is the last day you see it); green, gray, or foul-smelling mucus with itching signals infection, not fertility.

Cervical mucus (vaginal discharge) changes in a predictable pattern through your cycle, driven by estrogen. Learning the pattern helps you identify your fertile window for free.

The typical pattern

• Just after your period: dry or very little mucus
• Early cycle: sticky or tacky, cloudy
• Approaching ovulation: creamy and lotion-like, then increasingly wet
• At peak fertility (around ovulation): clear, slippery, and stretchy, like raw egg white - this is the most fertile sign
• After ovulation: thicker, cloudy, or dry again as progesterone takes over

Why it matters

The clear, stretchy egg-white mucus helps sperm travel and signals that ovulation is near. Your most fertile day is typically the last day you see this slippery mucus.

How to check

• Note the texture each day (on underwear, toilet paper, or when you wipe)
• Look for the shift from sticky to creamy to slippery egg-white

When changes aren't normal

Mucus that's green, gray, foul-smelling, or comes with itching points to infection, not fertility. See our vaginal health guide.

Combine this with the Fertile Window Calculator and read ovulation symptoms.

Femora lets you log cervical mucus daily so the egg-white fertile signal is easy to track.