How tracking hormones can be useful for learning your cycle

Want to know better about your cycle? You may have been tracking periods on the calendar every month. However, tracking the periods itself may not be enough. Because only a small percentage of women with regular cycles ovulate on the same day each cycle!

Let the Mira tell you exactly when your fertile and infertile days are. Order now with promo code WELCOME30 and take $30 off your Mira Fertility Starter Kit!
Order Mira Now

When are you fertile and non-fertile?

Fertile window means the days you have a high chance of getting pregnant if having sex. You have 6 fertile days. They are the 5 days leading to ovulation and the day of ovulation.

The hormones regulate ovulation. The luteinizing hormone or LH surges before ovulation. Then the ovary releases an egg down to the fallopian tubes.

Once ovulation happens, the egg only has up to 24 hours of lifespan. If it meets sperm during this time, the fertilized egg implants itself into the uterine wall. Prenatal development starts. If not, it will exit the body together with the next menstruation.

Does my ovulation happen around day 14 of the menstrual cycle?

Not necessarily. The calendar method calculates the day of ovulation based on your cycle length. However, the cycle length varies greatly.

The average cycle length is 28 days and the time of ovulation tends to happen on day 14, or 2 weeks before the next period starts. This concept was developed from research studies about 100 years ago. Cycle variations were never extensively researched then.

But recently, studies have uncovered the variability of menstrual cycles. Out of 221 women studied, “only 30% of women have the fertile window entirely within the days of the menstrual cycle identified by the calendar method. Most women reach their fertile window earlier or later. Women should be advised that the timing of their fertile window can be highly unpredictable, even if their cycles are usually regular.”

How does Mira help?

Mira is different from all other OPK’s because Mira gives your actual hormone concentrations. The only other place you can get to this level of accuracy is the doctors’ lab.

You can see your unique hormone curve, so you know exactly when you are fertile or non-fertile. OPK uses fixed hormone threshold to determine positive or negative so women are likely ended up with false positive all the time. With Mira, you can see your actual hormone levels and unique curve and find your ovulation. Mira’s algorithm learns your cycle. Your test data is automatically synced and managed by the Mira App.

Don’t forget to apply promo code WELCOME30 and take $30 off your Mira Fertility Starter Kit!
Order Mira Now

Order Your Mira Today

Ready to easily, precisely, and automatically track your ovulation cycles? Let Mira take the guesswork out of getting pregnant, so you know exactly when to conceive.

Reserve Your Mira Today

Ready to easily, precisely, and automatically track your ovulation cycles? Let Mira take the guesswork out of getting pregnant, so you know exactly when to conceive.

Recent Posts

Age and pregnancy: How Old is too Old to Have a Baby?

When scrolling through your social media channels it’s pretty easy to be confused about the role age plays in pregnancy. It’s common to see one headline state that your ovaries retire after 29, and then see other headlines implying that some women are having babies in their 50s and 60s. How old is too old to have a baby? The answer to that is more complex than you may think.

Bleeding During Sex: What does it Mean?

What does it mean when you bleed during sex? This is very common for women that are regularly menstruating and more common in women past menopause. The thought of bleeding during intercourse is stressful at first but in most cases the cause behind bleeding during sex is relatively harmless. 

Signs of PCOS You Need to Know

You might have heard about PCOS lately, but do you know that 1 out of 10 women actually has it nowadays? Polycystic ovary syndrome (PCOS) is a condition, caused by hormonal imbalance. Let’s look closer at one of the most widespread causes of infertility.