The Cyluna Blog
Expert insights, medical facts, and transparent guides to understanding your menstrual cycle and reproductive health.
Black Period Blood: What the Dark Colour Actually Means
Black period blood is old blood that oxidised before leaving the uterus: normal at the start and end of a period. Here is when the colour needs a doctor.
Can You Ovulate Twice? The Truth About Double Egg Release
You cannot ovulate twice in one cycle, but you can release two eggs within 24 hours, which is how fraternal twins happen. Here is the biology.
Light Period: Why It Happens and When It Matters
A lighter cycle than usual is often just a late-ovulation month, but it can also be pregnancy bleeding or a thyroid shift. Here are 9 causes and what to do.
Spotting After a Positive Pregnancy Test: Common Causes and Red Flags
Light spotting after a positive test is often from cervical changes or implantation timing. Learn typical patterns, and the signs that need a same-day call.
Breast Tenderness After Ovulation: PMS Sign or Pregnancy Sign?
Sore breasts after ovulation are usually progesterone at work, not a pregnancy signal. Learn the timing differences and when tenderness means something.
Stringy Period Blood, Clots and Tissue: What's Normal and What's Not
Stringy blood, small clots and fleshy bits in your period are usually shed lining, not a problem. Learn what is normal and the changes to get checked.
Sticky vs Creamy Cervical Mucus: Which Stage Are You In?
Sticky mucus means low fertility; creamy means oestrogen is rising and your fertile window is opening. Learn to tell the stages apart and what to do next.
10 DPO: Can You Trust a Test, and What Symptoms Actually Mean
A positive at 10 DPO is real, but a negative is not conclusive: many pregnancies are undetectable until 12 to 13 DPO. Here is your honest 10 DPO guide.
8 DPO: What's Happening, Early Symptoms and Whether to Test
At 8 DPO implantation may be starting, but symptoms are unreliable and a negative test proves nothing. Here is what is real at 8 DPO and when to test.
Discharge Colors Explained: What Yellow, Green, Pink and Brown Mean
A calm guide to discharge colors: what white, clear, yellow, green, pink and brown each mean, which are normal, and which need a doctor.
DPO Discharge: What Your Cervical Mucus Means at 7–14 DPO
What should discharge look like at 7, 10, 13 DPO? A day-by-day guide to luteal-phase mucus, creamy DPO discharge, and what (little) it reveals. Sourced.
Egg White Discharge: What It Means and When You're Most Fertile
Egg white discharge means your fertile window is open. Learn what it looks like, how many days it lasts, and the best days to conceive: with sources.
Heavy Implantation Bleeding: What's Normal, What's Not, and When to Worry
Heavy implantation bleeding is rare: but not impossible. Learn how heavy is too heavy, what clots mean, and when to test or see a doctor. Sources cited.
Implantation Cramps vs Ovulation Cramps: How to Tell the Difference
Ovulation cramps are mid-cycle and sharper; implantation cramps come a week later, milder and central. A timing-based guide to telling them apart.
Light Pink Discharge When You Wipe: The 9 Most Common Causes
Pink discharge when you wipe usually means a trace of blood mixed with cervical mucus. Here are the 9 most common causes and the ones needing a doctor.
Nausea Before Your Period: Why It Happens and How to Tell Why
Feeling sick before your period is usually PMS, driven by prostaglandins and hormone shifts. Here is how to tell PMS nausea from early pregnancy nausea.
Bleeding During Ovulation: What It Means and When to Worry
Spotting around ovulation is common and usually harmless. Learn why it happens, how to tell it apart from implantation bleeding, and when to see a doctor.
Can You Get Pregnant on Your Period? The Honest Answer
Yes: it is unlikely but possible. Here is the science behind why, which days carry the most risk, and what to do if you are worried.
Fertile Window Explained: How Long Are You Actually Fertile Each Month
Your fertile window is shorter than you think: and not on the day you expect. Learn exactly how many days you can conceive each cycle and how to identify them.
LH Surge Explained: What It Is and How to Track It
The LH surge triggers ovulation within 24–36 hours. Learn what it is, how OPK tests detect it, when to test, and how PCOS affects your LH levels.
Signs of Ovulation: 8 Ways to Know You Are Ovulating
Learn the 8 signs of ovulation your body gives every month: cervical mucus changes, LH surge, basal body temperature rise and more, from a PCOS founder.
Can You Ovulate Without Having a Period?
Yes, you can ovulate without bleeding. Learn about silent ovulation, amenorrhea, and what it means for your fertility.
How Many Days After Your Period Can You Get Pregnant?
Can you get pregnant right after your period? Learn the medical truth about sperm lifespan, early ovulation, and your fertile window.
How Many Days Can a Period Delay Before Seeing a Doctor?
Understand the maximum limits of a late period. Learn about missing multiple cycles, amenorrhea, PCOS, and when a delay requires medical intervention.
How Much Delay in Periods is Considered Normal?
Is your period late? Discover what constitutes a normal variance in your menstrual cycle, why your period delays, and when you shouldn't worry.
How to Calculate Ovulation Day with Irregular Periods
Learn exactly how to calculate your ovulation day even if you have irregular periods or PCOS using BBT, OPKs, and cervical mucus tracking.
How to Calculate Your Period Date: Step-by-Step Formula
Learn the exact formula to calculate your next period date using the luteal phase. Understand why your calculation might be off and how to get a more accurate prediction.
What is Ovulation and How is It Calculated?
A complete, medically informed guide to understanding the biological process of ovulation, your fertile window, and the most accurate ways to calculate it.
The Complete Guide to Your Menstrual Cycle: Phases, Hormones and What's Normal
Everything you need to know about your menstrual cycle: the four phases, hormones, what's normal and what's not. Written by Kanika, a woman living with PCOS.