The Cyluna Blog
Expert insights, medical facts, and transparent guides to understanding your menstrual cycle and reproductive health.
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. Calm, medically reviewed.
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. Medically reviewed.
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. Written by Kanika, medically reviewed.
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. Medically reviewed.