The menstrual cycle begins on the first day of your menstrual period (bleeding) and ends on the day before your next period. Your first cycle day (CD) is the first day you see bright red blood. The menstrual cycle is controlled by hormones and female fertility depends on this cycle.
What is an LH Surge?
There are three phases of your menstrual cycle: follicular phase, ovulatory phase, and luteal phase. In terms of the luteinizing hormone (LH) surge, the ovulatory phase is most important.
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Menstrual Cycle - Regular or Not
My cycles are 28 and 23 days
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28-Day Cycle And Ovulation
My cycle is 28 days, when do I ovulate? Is there a way that I can find out the exact day I ovulate? What if my cycles are shorter than 28 days?
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Irregular Menstrual Periods or Bleeding Abnormalities: A Window into a Woman's Health
A normal menstrual period is between 3-7 days long, and a normal menstrual cycle is between 21 and 35 days long with an average of 28 days. Menstrual cycle abnormalities are often related to ovulation issues.
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Menstrual Cycle Calculator
Follow your period to see if your menstrual cycles are normal.
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When Is Your Fertility Window?
You only have 5-6 fertile days in your cycle to get pregnant.
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The Menstrual Cycle and Period
Learn more about fertility and your menstrual cycle and bleeding.
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Menstrual Period Calculator and Calendar
Calculate your periods for the next 12 months!
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Antral Follicle Count - Ovarian Reserve Testing
The antral follicle count is a method for ovarian reserve testing using transvaginal ultrasound.
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What Is Cycle Syncing?
Learn about the four phases of the menstrual cycle and the best ways to eat and exercise during each phase!
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Your Menstrual Period And Bleeding Is A Window To Your Health
You may think the only thing your period can tell you is whether or not you're pregnant—or if need to take pain medication because your menstrual cramps hurt. But your menstrual cycle can actually clue you in to other health issues, too. ... read more »
I Took Provera and Still Didn't Get My Period
I have no period and did not bleed at all even after taking Provera. What does this mean?
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Cervical Changes During Menstrual Cycle (Photos)
Witness the cervical changes that take place during a full menstrual cycle. The pictures below are from a cervix of a 25-year-old woman who has never given birth before.
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Is A Normal Menstrual Cycle Always 28 Days Long?
Menstrual cycles can vary from one woman to another as well as for each woman, and ovulation does not always happen on the exact same day, even in women with regular cycles.
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Length of Bleeding
Does the length of my menses (bleeding) have an effect on my menstrual cycle?
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Menstruation, Menstrual Cycle, Period, and Ovulation
The timing of the menstrual cycle and ovulation is one of the most important things a woman should understand about her body since it is the determining factor in getting pregnant.
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Women’s Risk of STD Infection In Sync With Menstrual Cycle
Research reveals a woman’s risk of STD infection is in sync with her menstrual cycle and it’s all about making it easier for a successful pregnancy to occur.
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The Menstrual Cycle Days
A menstrual cycle is the time period starting on your first day of your menstrual period, the time you bleed, and it ends the day before the next next menstrual period.
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All About the Birth Control Pill
Birth control pills are now more than 99% effective at preventing pregnancy.
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How Obesity Affects Fertility and Pregnancy
Obesity in men and women has a significant negative impact on fertility, it increases infertility, and it also increases pregnancy complications.
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Women Who Work Hourly Shifts Are More Likely to Miscarry
Many women do not have this type of regularity in their jobs and they have to work hourly shifts that can switch at any time. Besides being exhausting, this type of work schedule can also affect a woman’s fertility and menstrual cycles.
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Questions About Your Chances of Getting Pregnant
When women are trying to conceive, they often have questions regarding their chances of getting pregnant. There are several factors that come into play when it comes to getting pregnant.
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Hyperthyroidism, FSH and LH
Gonadotropin, also known as FSH (follicle-stimulating hormone) and LH (luteinizing hormone), could be a cause of infertility in women with hyperthyroidism.
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Cinnamon May Help Treat PCOS
Adding cinnamon to the diet may be an effective treatment for polycystic ovary syndrome (PCOS).
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Cervix Cycle Day 33
Lower backache on day 33.
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Cervix Cycle Day 32
The cervix is low and open.
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Cervix Cycle Day 31
Feeling pretty bloated on day 31.
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Cervix Cycle Day 30
Breasts are feeling heavy now.
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Cervix Cycle Day 29
The cervix feels dry on day 29.
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Cervix Cycle Day 28
See what's happening on day 28.
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Cervix Cycle Day 27
Cervical fluid is tacky on day 27.
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Cervix Cycle Day 26
Breasts are swelling today.
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Cervix Cycle Day 25
See what's happening on day 25.
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Cervix Cycle Day 24
Cervix is high again.
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Cervix Cycle Day 23
Breast are tender on day 23.
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Cervix Cycle Day 22
Basal body temperature is starting to rise.
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Cervix Cycle Day 21
The cervical fluid is dry.
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Cervix Cycle Day 20
Is mittelschmerz starting?
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Cervix Cycle Day 19
Egg-white fluid is now gone.
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Cervix Cycle Day 18
The cervical fluid looks egg-white.
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Cervix Cycle Day 17
Certain changes taking place in the cervix now.
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Cervix Cycle Day 16
There is egg-white consistency now.
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Cervix Cycle Day 15
The cervix is now open and high.
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Cervix Cycle Day 14
Cervical fluid is watery on day 14.
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Cervix Cycle Day 13
The cervix is starting to soften up.
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Cervix Cycle Day 12
Cervical fluid is white and milky.
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Cervix Cycle Day 11
See what's happening on Day 11.
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Cervix Cycle Day 10
Cervix is low today on Day 10.
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Cervix Cycle Day 9
There is a dry sensation on day 9.
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Cervix Cycle: Day 8
Cervical fluid is sticky on day 8.
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